ICF/BHEL rake These are the first AC trains that were passed into service in 2010, after the elevated corridor from
Mahanayak Uttam Kumar to
Kavi Nazrul was completed. Later, as the last extension from
Kavi Nazrul to
Kavi Subhash was finished, more 3000 series rakes were introduced. These trains are manufactured by ICF in collaboration with
BHEL. Presently there are 13 (3000 series) rakes, which are operating on Blue Line. These rakes are numbed AC
n/n+1 (where (
n+1)/2 is the rake number). The rolling stocks numbers are now being changed to MR-30
n (where
n is the rake no.; 1, 2, 3....18) as they are being gradually repainted to white and violet. Some rakes are also used in
Yellow Line. As of 2025, two sets of
ICF MEDHA rakes with the rake numbers MR-417 and MR-418 have been brought to the Joka Depot and are currently operational on
Purple Line. As of 2025, two sets of ICF MEDHA rakes are also currently operational on
Orange Line similar to Purple Line. Some rakes are also used in
Yellow Line.
CRRC Dalian rake There was a need to replace non-AC rakes on Blue Line and so during mid 2015 it was announced that Indian Railways for the first time would rope an international train-maker,
China Railway Rolling Stock Corporation (CRRC) based in
Dalian. As per the tender, 14 rakes composed of 8 coaches each were to be supplied to Kolkata metro by CNR Dalian Locomotive company, a subsidiary of CRRC, which will be running on Blue Line. These rakes will be of ultra-modern technology. They will have doors that will be wider than any other metro rails in India. They will have wide vestibules, wider than the existing trains. The design consists of the aerodynamic front with large doors and LED lights, and violet colored stripe on silver color body. These rakes are capable of a top speed of . The first of the 14 rakes from Chinese firm Dalian was slated to arrive by December 2017 but got delayed due to various reasons. The first rake finally arrived in Kolkata on 3 March 2019 on a vessel at Netaji Subhas Dock (NSD). Each of the 8 coaches of the rake weigh nearly 45 tonnes. The rake was unloaded and taken to
Noapara carshed after which trial runs and inspection would be carried out before commencing operations. Other 13 rakes are ready, but the shipment got delayed due to the ongoing
coronavirus pandemic. These rakes were under performance trials for more than 20 months as serious problems related to performance of the rake were identified during trials. Some of the issues related to insufficient power to climb up the slopes in the tunnels and higher oscillation in the bogie. On 17th March 2023, the first Dalian rake was inducted into service. In August 2024, two more Dalian rakes were introduced on the Blue line - MR513 and MR514. Till August 2025, MR-504, MR-512, MR-507, MR-508, MR-509, MR-510 joined the fleet. MR-508 and MR-510 are specifically allotted for the Yellow Line.
BEML rake The bidding by the Spanish company
CAF for Green Line was cancelled due to funding related problems. Re-bidding was done and BEML was given the contract for 14 rakes of 6 coaches each at a cost of 900 crore. Another 3 rakes were ordered in 2022, increasing the total to 17 rakes. The rakes are microprocessor controlled with
3 phase AC motors and CBTC system. The rakes were supplied to Kolkata from 2017. They are numbered MR-60
n (where
n is the rake no.; 1, 2, 3....17).
ICF/MEDHA rake 1 prototype rake and one new rake manufactured by ICF Chennai and Medha and were supplied to Kolkata Metro by February 2026. These trains were newly built and based upon CBTC System.Kolkata Metro officials suggested changes in 1st prototype rake which was MR - 801, to change the interior layout along with new stainless steel gates from MR - 803 onwards. These rakes are numbed MR-80
n (where
n is the rake no.; 1, 2, 3....20). As of 2026, 04 such trains arrived at Kolkata and on which 03 rakes especially (MR - 802, 803 & 804) are alloted to Purple line. These trains of this type are compatible with
CBTC signalling system only. ==Scrapped or retired==