Kolkata Metro Line 1

Kolkata Metro Blue Line Dakshineswar - Kavi Subhash
Kolkata Metro rake at Masterda Surya Sen metro station in Line 1.
Overview
Status	Operational
Locale	Kolkata Metropolitan Area, India
Termini	Dakshineswar (North) Kavi Subhash (South)
Connecting lines	Green Line Purple Line Yellow Line Pink Line Orange Line
Stations	26
Service
Type	Rapid transit
System	Kolkata Metro
Daily ridership	600,000 to 650,000 (Weekdays) 380,000 (Weekends)
Ridership	176.9 Million (Annual)[1]
Technical
Number of tracks	2
Track gauge	5 ft 6 in (1,676 mm) broad gauge
Electrification	750 V DC third rail
Operating speed	55 km/h (34 mph) (in service)
Signalling	Communications-based train control
Route map Legend Chord link Line to Dankuni Dakshineswar Pink Line to Barrackpore Baranagar Eastern Line to Ranaghat Noapara depot Noapara Keshtopur Canal Yellow Line to Barasat Eastern Line to Bongaon Dum Dum Belgachia Circular Line & Sealdah South Circular Canal Shyambazar Sovabazar Sutanuti Girish Park Mahatma Gandhi Road Central Chandni Chowk Green Line ← to Howrah Maidan to Teghoria → Esplanade Park Street Purple Line to Diamond Park Maidan Rabindra Sadan Netaji Bhavan Jatin Das Park Kalighat Tollygunge Rabindra Sarobar Circular Line & Sealdah South Mahanayak Uttam Kumar Tollygunge depot Netaji Masterda Surya Sen Gitanjali Kavi Nazrul Shahid Khudiram Orange Line to Jai Hind Sealdah South to Sealdah Kavi Subhash New Garia depot Sealdah South to Namkhana

The Line 1, Blue Line, also known as North–South Metro of the Kolkata Metro, is a rapid transit system serving Kolkata in Indian state of West Bengal. It consists of 26 operational stations from Dakshineswar to Kavi Subhash. Nine of the stations are elevated, 2 at-grade and the remaining 15 are underground, with a total distance of 32.13 km (19.96 mi). The line connects Dakshineswar and New Garia and uses 5 ft 6 in (1,676 mm) broad gauge rolling stock. Dakshineswar, opened on 22 February 2021, is an elevated station located 4.1 km (2.5 mi) north of Noapara. It was the first underground railway to be built in India, with the first operations commencing in October 1984 and the full stretch that was initially planned being operational by February 1995. On 28 December 2010, it became the 17th zone of the Indian Railways.^[2] Being the country's first, and a completely indigenous process, the construction of the Kolkata Metro was more of a trial-and-error affair, in contrast to the Delhi Metro, which has seen the involvement of numerous international consultants. As a result, it took nearly 23 years to completely construct around 15 km (9.3 mi) underground railway from Birpara up to Tollygunge Metro Station.

It connects Line 2 at Esplanade and Line 6 at Kavi Subhash, and will eventually connect Lines 3, 4 and 5. Public transport experts have suggested that the line be extended from Dakshineswar to Bally (where it can connect with local trains of the Howrah division of Eastern Railway) and eventually to Dankuni, an emerging industrial city.