Purple Line (Namma Metro)

Purple Line

A Purple Line metro train waiting at Baiyappanahalli Metro Station.
Overview
Other name(s) East - West corridor
Type Metro
System Namma Metro
Locale Bangalore, Karnataka, India
Termini Baiyappanahalli
Mysore Road
Stations 17
35 (Phase II)
Daily ridership 45,000 (February 2016)[1]
Website bmrc.co.in
Operation
Opened 20 October 2011 (2011-10-20)
Owner Bangalore Metro Rail Corporation Limited (BMRCL)
Character Elevated, At Grade and Underground
Depot(s) Baiyappanahalli
Rolling stock Hyundai Rotem
Technical
Line length 18.22 km
34.30 km (Phase II)
Track gauge 1,435 mm (4 ft 8 1⁄2 in) standard gauge
Electrification 750 V DC third rail
Operating speed 40 km/h (25 mph)
Purple Line map
Legend
 Whitefield
 Ujwala Vidyalaya
 Kadugodi
 International Tech Park
 Satyasai Medical Institute
 Vaidehi Hospital
 Kundalahalli
 Visvesvaraya Industrial Estate
 Doddanakundi
 Garudacharpalya
 Mahadevapura
Narayanapura
cancelled
 KR Puram

 Jyothipuram
 BaiyappanahalliParking
 Swami Vivekananda RoadParking
 Indiranagar
 Halasuru
 Trinity

 Mahatma Gandhi Road
Gottigere–
Nagavara line

 Cubbon Park
 Vidhana Soudha
 Sir M. Visveshwarya

 KempegowdaGreen Line (Namma Metro) Green Line 

 City Railway StationMainline rail interchange

 Magadi RoadParking
 Hosahalli
 Vijayanagar
 Attiguppe
 Deepanjali Nagar
 Mysore RoadParking

 Nayandahalli
 Rajarajeshwari Nagar
 Bangalore University
 R.V. College of Engineering
 Kengeri

The Purple Line of the Namma Metro is part of the metro rail system for the city of Bangalore, India. The 18.22 km line connects Baiyyappanahalli with Mysore Road. The line links the eastern, central and western areas of Bangalore. The Purple Line is mostly elevated, with 12 elevated stations and 5 underground stations. The Majestic station serves as the interchange station with the Green Line. It generally takes around 35 minutes to travel from one end to another end, as compared to around 90 minutes taken to travel on road.

Civil construction work on Phase I of the line began on 15 April 2007, and was originally scheduled to be completed in 5 years. However, the project faced delays and missed several deadlines, which the BMRCL blamed on land acquisition disputes, and difficulty in drilling though the hard rock of the Deccan Plateau for the underground section. The first stretch (Reach 1) of the Purple Line between Baiyyappanahalli and Mahatma Gandhi Road was inaugurated on 20 October 2011, and Reach 2 between Mysore Road and Magadi Road commenced operations on 16 November 2015. These two sections operated independently until the final section, the underground stretch between Mahatma Gandhi Road and City Railway station was opened to the public on 30 April 2016, linking the previously operational stretches and completing Phase I of the Purple Line. The final stretch of Phase I is the first underground metro section in South India.[2]

The proposed Phase II will extend the line at both its eastern and western termini. Once Phase II is completed (expected in 2020), the line will consist of 35 stations from Whitefield in the east to Kengeri in the west, and measure 34.30 km.

History

The following dates represent the dates the section opened to the public, not the private inauguration.[3]

History
Section Extension date Termini Length Stations
Reach 1 20 October 2011BaiyappanahalliM. G. Road6.70 kilometers (4.16 mi)6
Reach 2 16 November 2015 Magadi Road Mysore Road 6.40 kilometers (3.98 mi)6
UG 1 30 April 2016 M. G. Road Magadi Road 5.12 km (3.18 mi)[lower-alpha 1] 5
Reach 1 extension WhitefieldBaiyappanahalli15.50 km (9.63 mi)13
Reach 2 extension Mysore RoadKengeri4.88 km (3.03 mi)5
Total WhitefieldKengeri34.30 km (21.31 mi)35

Phase I

The detailed project report (DPR) for Phase I, comprising the Purple and Green Lines, of the Namma Metro project was prepared by the Delhi Metro Rail Corporation (DMRC) and submitted to the BMRCL in May 2003. The final approval on a scheme that incorporated the expertise of DMRC and RITES Limited did not come until April 2006.[4] The DPR prepared by DMRC envisaged a 33 km (21 mi) elevated and underground rail network with 32 stations for Phase I of the project. The proposed gauge was standard gauge unlike the broad gauge on the Delhi Metro network. The rationale for the metro includes reduced journey times, cutting fuel use, accident reduction and lower pollution.

Construction work for Phase I of the Namma Metro project was scheduled to start in 2005 but was delayed due to change of government in Karnataka and continued debate over whether the project was financially feasible and appropriate for the city. The Union Cabinet approved Phase I of the Namma Metro on 25 April 2006, when it was estimated to cost ₹5,400 crore (US$800 million). The cost was later revised to ₹8,158 crore (US$1.2 billion), and then to ₹11,609 crore (US$1.7 billion). The cost escalated to ₹13,845 crore (US$2.1 billion) as various problems delayed the completion of the project.[5][6][7][8] The cost of the Purple Line was estimated at ₹4500-5000 crore,[9] with the cost of the underground stretch alone amounting to about ₹2,000 crore (US$300 million).[10] Land acquisition for Phase I of the project cost ₹2,500 crore (US$370 million).[5] BMRCL secured ₹6,500 crore (US$970 million) through long-term loans and ₹300 crore (US$45 million) by selling bonds, while the remaining project cost was funded by Central Government and the State Government. BMRCL secured loans from several agencies - ₹3,000 crore (US$450 million) from the Japan International Cooperation Agency (JICA), ₹600 crore (US$89 million) from the Housing and Urban Development Corporation Limited (HUDCO), ₹25 crore (US$3.7 million) from the Asian Development Bank (ADB), and the rest from a French lending agency. Approximately 10% of the ₹6500 crore must be paid as interest by the BMRCL every year. The Federation of Karnataka Chambers of Commerce and Industry estimated that this amounted to an interest payment of ₹2 crore (US$300,000), however the BMRCL refuted the claims that the interest was that high, while confirming that it was "definitely more than ₹1 crore (US$150,000) per day."[5]

Navayuga Engineering was awarded the contract to construct Reach 1 of the Purple Line in 2006.[11] The foundation stone for the Phase I construction was laid by Prime Minister Manmohan Singh on 24 June 2006,[12] and civil construction on Reach I of the line, between M.G. Road and Baiyyappanahalli, commenced on 15 April 2007.[13] The underground work commenced in May 2011.[14] Each corridor consists of two 4.8 km long tunnels which are the first underground tunnels built for trains in South India. The tunnels, dug using tunnel boring machines (TBM), are located approximately 60 feet below ground level, have an outer diameter of 6.5 metres and inner diameter of 5.6 metres, and situated are 5 metres apart.[15] Two Japanese TBMs, nicknamed Helen (TBM 1) and Margarita (TBM 2), were used for tunneling work on the Purple Line.[16][17][18][19][20] Tunneling work began in May 2011 and completed in May 2014.[21] The work required the BMRCL to conduct 10,000 controlled blasts using 50,000 kg of 125 gm gel nitrate capsules as explosives to tunnel through the hard granite rock of the Deccan Plateau.[22][23][24] Blasts were carried out daily from 6 am to 7 am from March 2011 to early 2013. Regulations restricted blasting blasting work from being carried out at the times of day. Preparation for a single blast took approximately 3.5 hours, with the actual duration of a blast being 5 seconds. Approximately, 20,250 truckloads of debris was excavated during construction. Kolar-based National Institute of Rock Mechanics served as consultant for blasting work.[24] A total of 2500 trees were cut down during the construction of both lines of Phase I.[8][25]

Reach 1 was originally scheduled to begin operations in March 2010. After the deadline was missed, the Bangalore Metro Rail Corporation Ltd (BMRCL) shifted the deadline to 31 December 2010. It was again changed to 4 April 2011 and then the date of inauguration was set at 15 September 2011. The next deadline set was 26 September 2011 which was also missed. The metro was finally opened to the public on 20 October 2011 at 4 pm IST by Union Urban Development Minister Kamal Nath.[26] There was an overwhelming response to the metro at the commencement of operations. As per BMRCL sources within first three days of operations, 169,019 people used this mass transit system.[27] At the end of 4th day about 200,000 passengers had already commuted in Namma Metro. Namma Metro's first 12-day cumulative revenue was ₹10 million (US$150,000).[28] During the first month, since the opening of Reach I, about 1,325,000 people travelled by the metro.[29] On average, 41,390 people took the train every day, while the average daily revenue was ₹667,262. The BMRC earned a revenue of ₹21 million (US$310,000) in its first month of operation.[30] In the first six months of operation, average ridership went down to 24,900. The BMRC earned a total of ₹66 million (US$980,000) during the same period.[31] Namma Metro posted a profit of ₹4.1 million (US$61,000) after almost one year of operating Reach I. BMRCL estimates that nearly 8 million passengers travelled on the system, in its first year of operations.[32]

Reach 2 received clearance to start services from Satish Kumar Mittal, the Commissioner for Metro Rail Safety (CMRS), on 21 September 2015.[33] Reach 2 was opened to the public on 16 November 2015.[34][35]

BMRCL applied for safety clearance to open the underground stretch in the third week of March 2016.[36] The Commissioner for Railway Safety (CRS) granted clearance to begin operations on the underground section in the first week of April 2016. However, BMRCL did not open the section until 30 April 2016, as it was waiting for the availability of VIPs to inaugurate the stretch.[37] The underground section was inaugurated by Union Urban Development Minister M. Venkaiah Naidu, Chief Minister Siddaramaiah, and other dignitaries at a ceremony at the Vidhana Soudha on 29 April 2016. The inaugural train departed from the Vidhana Soudha station at 6:35 PM.[38] Namma metro was first driven in underground section by LOCO pilot Chethankumar who became the first LOCOPILOT in South India to do so .[39] The section was opened to the public from 6 AM on 30 April 2016.[40][41] Trains ran until 10 PM on opening day, making 115 trips, transporting 93,526 passengers and earning the BMRCL a revenue of ₹35 lakh (US$52,000).[42][43] The following day, 120 trips were operated on the Purple line, transporting about 125,000 passengers. On the first two days of operation, after the opening of the underground section, the BMRCL collected ₹Convert in revenues from the Purple Line.[44][45]

Stations

There are 17 stations on the Purple Line. All underground stations were built using the cut-and-cover method. Most underground stations are 300 metres long and 25 metres wide. The interchange station at Majestic is much larger.[22]

Initially, there were no toilets at Namma Metro stations, despite demand from commuters. BMRCL countered the demand by arguing that constructing toilets was not part of the metro construction plan, and that building toilets in the city was the responsibility of the Bruhat Bengaluru Mahanagara Palike (BBMP). They also justified the decision by saying that commuters spent "hardly five minutes" at stations, so restrooms were not required, and also that none of the Bangalore Metropolitan Transport Corporation (BMTC) bus stops in the city had toilets for passengers. However, BMRCL eventually heeded public demand, and the metro's first toilets were opened at Baiyappanahalli and Indiranagar stations on 21 June 2013.[46]

In September 2015, it was announced that the proposed Narayanapura metro station would be removed from the network, and the proposed Krishnarajapuram metro station would be shifted by 295 metres to the west, due to difficulty in acquiring land in the area.[47] In April 2016, the BMRCL revealed that the Whitefield metro station, proposed to be located 200 metres away from the Whitefield railway station, would be construct at a new location directly opposite the railway station to provide connectivity between the metro and railway lines.[48]

Yellow tactile tiles are used at all stations to guide the visually impaired. The tiles start at the ramp and lead to the staircases and lifts.[49]

Purple Line
# Station Name Opening Connections Layout Coordinates
EnglishKannada
1Whitefield None
2Ujwala Vidyalaya None
3Kadugodi None
4ITPL None
5Satyasai Medical Institute None
6Vydehi Hospital None
7Kundalahalli None
8Visvesvaraya Industrial Estate None
9Doddanakundi None
10Garudacharapalya None
11Mahadevapura None
12KR Puram None
13Jyothipuram None
14Baiyappanahalli 20 October 2011 Mainline rail interchangeBaiyappanahalli railway stationAt Grade
15Swami Vivekananda Road 20 October 2011 NoneElevated
16Indiranagar 20 October 2011 NoneElevated
17Halasuru 20 October 2011 NoneElevated
18Trinity 20 October 2011 NoneElevated
19Mahatma Gandhi Road 20 October 2011 Gottigere - Nagawara LineElevated
20Cubbon Park 30 April 2016 NoneUnderground
21Vidhana Soudha 30 April 2016 NoneUnderground
22Sir M. Visveshwaraya 30 April 2016 NoneUnderground
23Majestic 30 April 2016      Green LineAt Grade
24City Railway Station 30 April 2016 Mainline rail interchangeBangalore City railway stationUnderground
25Magadi Road 16 November 2015 NoneElevated
26Hosahalli 16 November 2015 NoneElevated
27Vijayanagar 16 November 2015 NoneElevated
28Attiguppe 16 November 2015 NoneElevated
29Deepanjali Nagar 16 November 2015 NoneElevated
30Mysore Road 16 November 2015 NoneElevated
31Nayandahalli None
32Rajarajeshwari Nagar None
33Bangalore University None
34R.V. College of Engineering None
35Kengeri None
Interior of the Metro coach
Interior of the Metro coach on inauguration day
MG Road Station at night

Parking

Currently, parking facilities are available only in Baiyappanahalli and Swami Vivekananda Road stations. But after the completion of Phase I by December 2016, more stations would be having parking lots. The BMRCL awarded the contract to Central Parking Services (CPS) for an annual license fee of ₹2.5 million (US$37,000).[50] An average of 4,764 cars and 5,721 two-wheelers use parking facilities at Baiyappanahalli and SV Road stations daily.[32]

Infrastructure

Rolling stock

Twenty-one trains operate on the Purple Line. Each train is made up of 3 coaches and has a total capacity of 1000 passengers.[51]

All coaches are air-conditioned.[52]

Traction

The Purple Line was the first railway line in India to use 750 V DC third rail traction.[8]

Operations

Frequency

The metro service runs from 6 AM and 10 PM daily. The headway on the line is 10 minutes. The end-to-end travel time on the Purple Line is 33 minutes.[53] From 7 November 2016, Purple Line trains began running at an interval of every 4 minutes between 9:10 am and 9:58 am to handle rising passenger traffic during morning peak hours.[54]

Metro services have occasionally operated beyond 2200 hours. Services are usually extended on festival days or when a senior cricket match is held in Bangalore.[55][56]

Speed

The system is designed for a maximum train speed of 80 km/h. However, the Research Design and Standards Organization (RDSO) fixed the speed at which trains are allowed commercially operate at 67.50 km/h on straight sections, 35 km/h on curves, and 45 km/h in stations.[57] The maximum permitted speed on the underground section is 40 km/hr. Purple Line trains usually operate at speeds of 38–40 km/hr. According to metro authorities, the trains require more than 400 metres to accelerate from, or decelerate to, a halt. As the inter-station distance on the line is about 1 km, the trains have limited time to run at higher speeds.[58]

Fare collection

End-to-end fare on the Purple Line is ₹40 (59¢ US). Commuters who pay using smartcards receive a 15% discount per transaction.

As of April 2016, 37.59% of commuters on the Purple Line use smart cards, while the rest purchase tokens.[59]

Security

All stations on the line have 4 emergency exits, and Majestic station has 18 emergency exits. Stations have been built to withstand zone III earthquakes. Bangalore is located in a zone II earthquake prone area. The underground tunnels are equipped with walkways to enable passengers to disembark from a train and walk to the nearest station in case of a technical failure. The underground section is also equipped with 5 cross-passages that will enable passengers to move between tunnels, in case one tunnel fills up with smoke. There are three tunnel cross-passages between Majestic and Sir M Visvesvaraya metro station, and one each between Vidhana Soudha and Central College, and Majestic and City Railway station. All stations were built with flame retardant materials, and also have 100,000 litres of water stored on-site to be used in case of a fire.[60]

Mobile and Wi-Fi connectivity

The Purple Line was the first metro line in India to introduce Wi-Fi onboard trains. All trains had Wi-Fi enabled onboard since the opening of the metro.[61] On 23 April 2016, a few days before the opening of the underground section of the line, the BMRCL floated tenders to install infrastructure for mobile and Wi-Fi connectivity across all 41 stations in Phase I of the Namma Metro. Signal strength is expected to be weak until the work is completed.[62][63] The contract was awarded to the American Tower Corporation (ATC).[64] The work was scheduled to be completed by October 2016, but was severely delayed due to a limited window in which the work could be carried out. Contractors were only permitted to access the tunnels between midnight and 4am two days a week. The remaining days were required by metro authorities to carry out maintenance work. Mobile connectivity is expected to be available in the underground section only by the end of 2017.[65]

See Also

Notes

  1. ↑ The stretch from M. G. Road to Magadi Road is 5.12 km (3.18 mi). UG 1 is the name given by the BMRCL to the underground portion of this stretch, which is composed of two 4.82 km (3.00 mi) tunnels.

References

  1. ↑ Kulkarni, Tanu (5 April 2014). "Byappanahalli-M.G. Road metro stretch more popular". The Hindu.
  2. ↑ "You can take underground metro from April 30". The Hindu. 25 April 2016. Retrieved 25 April 2016.
  3. ↑ "Metro Network". www.bmrc.co.in. Retrieved 26 April 2016.
  4. ↑ "Bangalore Metro Rail Project Phase 2" (PDF). Bangalore Metro Rail Corporation Limited.
  5. 1 2 3 "Metro June Deadline Stands, But With Rider". The New Indian Express. Retrieved 27 April 2016.
  6. ↑ "Cabinet approves Bangalore metro". Online Edition of The Economic Times. 28 April 2006.
  7. ↑ "It's official: Namma Metro Phase-1 not before 2014". Deccan Chronicle. 21 December 2011. Retrieved 3 January 2012.
  8. 1 2 3 "Lessons from phase 1: Can Bengaluru Metro beat deadline blues in underground trail? - Firstpost". Firstpost. 27 April 2016. Retrieved 27 April 2016.
  9. ↑ "Bangalore underground metro section inaugurated". The Indian Express. 30 April 2016. Retrieved 29 April 2016.
  10. ↑ "Metro ready but how do we get to the station?". Deccan Herald. Retrieved 27 April 2016.
  11. ↑ "Award of contract" (PDF). Official webpage of B.M.R.C. Archived from the original (PDF) on 28 September 2007. Retrieved 2 October 2011.
  12. ↑ "PM lays foundation stone for Metro project". PM office website.
  13. ↑ "Bangalore Metro Rail Work to begin on Feb 3, 2007". The Times of India. 21 January 2007. Retrieved 16 October 2007.
  14. ↑ Rohith B R, Bangalore, 14 Oct 2012, DHNS: (14 October 2012). "Automation helps precise work on metro tunnels". Deccan Herald. Retrieved 4 March 2013.
  15. ↑ "15 Trains to Run at Frequency of 10 Minutes on Metro's Purple Line". The New Indian Express. Retrieved 27 April 2016.
  16. ↑ "Bengaluru Metro Goes Underground - With Help From Helen And Margarita". NDTV.com. Retrieved 28 April 2016.
  17. ↑ Special Correspondent (28 September 2012). "A smoother passage for Margarita". The Hindu. Chennai, India. Retrieved 4 March 2013.
  18. ↑ Bangalore, 23 Sep 2012, DHNS : (23 September 2012). "Tunnelling along north-south corridor to begin soon". Deccan Herald. Retrieved 4 March 2013.
  19. ↑ Update : 06:47 pm IST (18 December 2012). "Metro rushes to meet deadline". Deccan Chronicle. Retrieved 4 March 2013.
  20. ↑ Bangalore, 21 Feb 2013, DHNS (21 February 2013). "After Helen, Margarita, it's Krishna and Kaveri". Deccan Herald. Retrieved 4 March 2013.
  21. ↑ "Namma Metro fare more than Delhi Metro - Bangalore Mirror -". Bangalore Mirror. Retrieved 26 April 2016.
  22. 1 2 "Conducted 10,000 blasts to cut hard rocks: BMRCL". Deccan Herald. Retrieved 26 April 2016.
  23. ↑ Krishnan, Raghu. "Phase one of Bengaluru Metro to be launched today". Business Standard. Retrieved 28 April 2016.
  24. 1 2 "10,000 Blasts, 0 Injuries: Metro's Historic Run Today". The New Indian Express. Retrieved 29 April 2016.
  25. ↑ "Underground Bengaluru Metro Station service flagged off, Siddaramaiah seeks Centre's help for Namma Metro phase III | Latest News & Updates at Daily News & Analysis". dna. 29 April 2016. Retrieved 29 April 2016.
  26. ↑ "Metro comes to Bangalore finally". The Times of India. 20 October 2011.
  27. ↑ "Revenue Services Report" (PDF).
  28. ↑ Madhumathi D.S. "Business Line : Industry & Economy / Logistics : Namma Metro rides on 'gawk' power". Business Line. Retrieved 3 January 2012.
  29. ↑ "13.25 lakh rode the Metro – The Times of India". The Times of India. 25 November 2011.
  30. ↑ "Namma Metro gains momentum – southindia – Bangalore – ibnlive". Ibnlive.in.com. Retrieved 3 January 2012.
  31. ↑ "Joyrides in Bangalore Metro are over – Bangalore – DNA". Daily News and Analysis. Retrieved 25 July 2012.
  32. 1 2 "Bangalore Metro posts Rs 41 lakh profit in first year – Bangalore – DNA". Daily News and Analysis. 18 October 2012. Retrieved 18 October 2012.
  33. ↑ Express News Service (September 20, 2015). "Mysore Road-Magadi Road Metro Stretch Gets Nod". New Indian Express.
  34. ↑ Maya Sharma (16 November 2015). "Bengaluru Starts Metro Services Between Magadi Road, Mysuru Road". NDTV.com. Retrieved 18 November 2015.
  35. ↑ Preeti Panwar. "Bengaluru: Namma Metro Magadi Road-Mysuru Road line inaugurated". www.oneindia.com. Retrieved 18 November 2015.
  36. ↑ "South India's first UG metro launched in Bengaluru on Friday - Times of India". The Times of India. Retrieved 25 April 2016.
  37. ↑ "Metro on tracks, but needs VIP to wave green flag". Deccan Herald. Retrieved 23 April 2016.
  38. ↑ "CM Launches Namma Metro Underground Corridor Train in Vidhana Soudha". The New Indian Express. Retrieved 29 April 2016.
  39. ↑ "Namma Bengaluru is now a truly metropolitan city - Bangalore Mirror -". Bangalore Mirror. Retrieved 29 April 2016.
  40. ↑ "Baiyappanahalli-Nayandahalli metro opens on April 30 - Bangalore Mirror -". Bangalore Mirror. Retrieved 25 April 2016.
  41. ↑ "Bangaloreans cheer as Namma Metro rolls on underground tracks - Firstpost". Firstpost. 30 April 2016. Retrieved 30 April 2016.
  42. ↑ "Bengalureans enjoy date with east-west corridor". Deccan Herald. Retrieved 1 May 2016.
  43. ↑ "For First Metro Rider, It Feels Like Good Old Days". The New Indian Express. Retrieved 1 May 2016.
  44. ↑ "Bengalureans go purple with Namma Metro". Deccan Herald. Retrieved 1 May 2016.
  45. ↑ "Record one lakh commuters travel in Bengaluru metro on Sunday". India.com. 2 May 2016. Retrieved 1 May 2016.
  46. ↑ "At Metro, wanna pee? Pay Rs 3 - Bangalore - DNA". Dnaindia.com. Retrieved 2013-09-28.
  47. ↑ Lalitha, S. (25 September 2015). "Namma Metro Phase II to be Realigned at 2 Stations". New Indian Express.
  48. ↑ http://www.newindianexpress.com/cities/bengaluru/Metro-June-Deadline-Stands-But-With-Rider/2016/01/20/article3235280.ece
  49. ↑ G. Ananthakrishnan (14 January 2013). "Linking modes of commute". The Hindu. Chennai, India. Retrieved 4 March 2013.
  50. ↑ "Park car, pay more at metro". The Hindu. Chennai, India. 30 March 2012.
  51. ↑ "Train Every 3 Minutes Also Possible". The New Indian Express. Retrieved 28 April 2016.
  52. ↑ "A First-hand Account of Namma Metro's Underground Ride". The New Indian Express. Retrieved 29 April 2016.
  53. ↑ "Get ready to crisscross Bengaluru in 33 mins - Times of India". The Times of India. Retrieved 27 April 2016.
  54. ↑ http://timesofindia.indiatimes.com/city/bengaluru/BMRC-hoping-to-finish-work-on-Sampige-Road-Puttenahalli-line-ahead-of-April-2017-deadline/articleshow/55252282.cms
  55. ↑ Bangalore, 22 Dec 2012, DHNS: (22 December 2012). "Bar timings relaxed for revellers". Deccan Herald. Retrieved 6 June 2013.
  56. ↑ "Metro to run till midnight today, tomorrow". The Times of India. 24 December 2012. Retrieved 6 June 2013.
  57. ↑ Chethan Kumar, Bangalore, 22 May 2013, DHNS: (22 May 2013). "RDSO in no hurry to allow Metro to up speed". Deccan Herald. Retrieved 6 June 2013.
  58. ↑ "Metro to run at 40 km per hour on underground section". Deccan Herald. Retrieved 27 April 2016.
  59. ↑ "Metro on a smartcard roll - Bangalore Mirror -". Bangalore Mirror. Retrieved 27 April 2016.
  60. ↑ "From today, Metro's on a roll; it's safe too - Bangalore Mirror -". Bangalore Mirror. Retrieved 28 April 2016.
  61. ↑ "NAMMA METRO IS A GEEK TRAIN - Times of India". The Times of India. Retrieved 25 April 2016.
  62. ↑ "No wifi or network in underground section, for now". The Hindu. 27 April 2016. Retrieved 27 April 2016.
  63. ↑ "Mobile Signals to be Strengthened in Metro's Underground Corridor". The New Indian Express. Retrieved 25 April 2016.
  64. ↑ http://timesofindia.indiatimes.com/city/bengaluru/BMRC-hoping-to-finish-work-on-Sampige-Road-Puttenahalli-line-ahead-of-April-2017-deadline/articleshow/55252282.cms
  65. ↑ http://www.thehindu.com/news/national/tamil-nadu/underground-mobile-connectivity-to-take-longer/article9257530.ece
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