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GOVERNMENT OF INDIA
MINISTRY OF RAILWAYS
LOK SABHA
UNSTARRED QUESTION NO. 6118
TO BE ANSWERED ON 01.04.2026
STRUCTURAL HEALTH OF KOLKATA METRO
6118. SMT. MALA ROY:
Will the Minister of RAILWAYS be pleased to state:
(a) the details of the monitoring of structural health like pillars, platform
roof and railway track of Kolkata Metro; and
(b) the details of the periodical monitoring of structural health report of
Said Metro?
ANSWER
MINISTER OF RAILWAYS, INFORMATION & BROADCASTING AND
ELECTRONICS & INFORMATION TECHNOLOGY
(SHRI ASHWINI VAISHNAW)
(a) & (b) There is a well-established system of inspection and maintenance
of railway tracks, tunnels, bridges and structures on Indian Railway
including Kolkata metro as prescribed in various manuals.
All the tracks, bridges, tunnels and other structures of Kolkata Metro
is monitored through a system of regular and periodic inspections carried
out by officials in accordance with laid down maintenance and inspection
schedules. This includes daily patrolling, on-foot inspection, trolley
inspection and foot plate/rear window inspection and other scheduled
inspections by the concerned officials. Based on regular and periodic
inspections conducted by Metro Railway officials, necessary maintenance
and repair works are planned and executed.
In addition to routine inspections, special technical inspections are
also undertaken through specialized agencies like RITES Ltd. for
comprehensive assessment of health of structures.
Repair/strengthening/rehabilitation of bridges, tunnels, tracks and
other structures is a continuous process and is undertaken whenever so
warranted by their physical condition as ascertained during these
inspections. At present works costing about Rs. 82 Cr. sanctioned for
rehabilitation and strengthening of viaduct and structures.
§ Page 1 of 5Kolkata Metro
Kolkata Metro in Kolkata started in 1972. The details of the Metro
commissioned since then are as under:
Period Metro Commissioned
1972 to 2014 (42 years) 28 km
2014 to 2025 (11 years) 45 km
The details of Metro Corridors commissioned are as under:
Section Commissioned
S.No. Metro Corridor
Kavi Subash – Noapara (28 This Corridor commissioned before
1 Km) (Blue Line) year 2014 (This required about 42
years to complete)
Noapara – Dakshineswar This Corridor commissioned in 2020-
2 (4.14 Km) (Extension of 21
Blue Line)
Noapara – Jaihind Airport - Noapara – Jaihind Airport section
3 Barasat (18 Km) (Yellow (6.77 Km) Commissioned in 2025-26
Line)
Joka – Majerhat - Esplanade Joka – Majerhat section (7.74 Km)
4 (14 Km) (Purple Line) Commissioned in stages from 2022
to 2o24.
New Garia - Belaghata - New Garia – Belaghata (9.8 Km)
5 Dumdum Airport (32 Km) Commissioned in stages between
(Orange Line) 2023-26
Howrah Maidan – Salt Lake This Corridor commissioned in
6 Sec. V (16.55 Km) (Green stages from 2019-25.
Line)
Further, work pertaining to 4 Metro corridors at total length of about
52 km is under progress, out of which 20 km of work is held up due to land
acquisition and utility shifting issues pertaining to State Government. In
the rest of the Metro stretch, though the work is in progress yet facing
difficulties due to one or other reasons at the end of State Government.
Details are as below:
(i) Noapara – Jaihind Airport - Barasat (18 km): Noapara - Jai Hind
Airport (6.77 km) has been commissioned and work from Jai Hind
Page 2 of 5Airport to Michael Nagar is in progress. However, work from New
Barrackpore to Barasat (7.5 km) is held up due to land acquisition
and encroachment issues by State authorities.
SN Location Issues
1. New Barrackpore Land acquisition (23,000 sq. m) and
to Barasat removal of heavy encroachments (1277
hutments, 764 shops) are involved in this
section.
The matter is not yet resolved by
Government of West Bengal (GoWB).
(ii) Joka – Majerhat - Esplanade (14 km): Joka - Majerhat (7.74 km) has
been commissioned and balance work from Majerhat to Esplanade
(6.26 km) has been taken up. However, progress of the work is
affected due to the following issues:
SN Location Issues
1. Khidderpur For utility shifting and road traffic diversion,
Metro Station 837 sqm permanent and 1,702 sqm
temporary land of State Government
(Kolkata Armed Police) is required. The
proposal of this land was sent to State
Government on 24.08.2020.
Several meetings were held with officials of
Government of West Bengal (GoWB) for
transfer of above land.
After lot of persuasion, State Government
finally accorded approval in July 2025 only
after almost 5 years.
2. Dr. B.C. Roy For construction of Esplanade Metro
Market Station, temporary shifting of unauthorised
528 Shops at B.C. Roy Market on Defence
land is required.
The proposal for NOC of
temporary/permanent shifting of these
shops was submitted to State Government
in February 2022. Shops for temporary
Page 3 of 5SN Location Issues
shifting of these unauthorized shops have
also been constructed by Railway.
The State Government has been requested
to facilitate shifting. Regular follow up with
State PWD is also being done.
Issue is pending for more than 3.5 years.
(iii) New Garia – Belaghata - Dum Dum Airport (32 km): New Garia -
Belaghata (9.8 km) has been commissioned and balance work from
Belaghata to Dum Dum Airport (22.2 km) has been taken up.
However, progress of the work is affected due to the following
issues:
SN Location Issues
1. Chingrighata Temporary traffic diversion at Chingrighata
Crossing crossing for launching of viaduct segments
(Between is required for 3 nights each on either side
Beleghata – of the road (8 hours on every night).
Gour Kishore The proposal was submitted to Government
Ghosh stations) of West Bengal (GoWB) in December 2024.
The diversion road as desired by Kolkata
traffic police has already been constructed
in February 2025.
Since then, several meetings have been
held with various State Government and
Kolkata police officials for NOC.
The NOC is still awaited even after about 12
months.
(iv) Baranagar - Barrackpore - Dakshineshwar (14.5 km): Baranagar -
Dakshineshwar (2 km) has been commissioned and balance work from
Baranagar to Barrackpore (12.5 km) is held up due to pending utility
shifting in the alignment by state government authorities. The details
are as below:
SN Location Issues
1. Baranagar The original alignment along the B.T road
Page 4 of 5to Barrackpore was agreed in 2011 as per MoU among
Metro Railway, RVNL and Kolkata
Municipal Corporation.
As per MoU, existing pipeline was to be
replaced by new 64-inch diameter pipeline
by the State Government.
Shifting of this pipeline was completed in
2012.
However, NOC is still awaited from
Government of West Bengal.
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