A Metro car depot at Kanjurmarg will delay the mass transmit lines in the city and hit punctuality of services on Lines 3 and 6 when implemented, the Centre has said, urging the Maharashtra government to reconsider its decision of scrapping the car shed at Aarey. Sunil Kumar, under secretary to the Government of India, has written to the state's chief secretary in this regard.

In a 3-page letter on March 17, Kumar cited meetings between the Ministry of Housing and Urban Affairs and the Maharashtra chief secretary on September 23, 2021 to stress that the progress of Metro 3 has been severely hampered due to the change in plan over the depot. Once completed, Metro 3 will run from Colaba to Seepz in Santacruz.