A 6.5 kilometres (4.0 mi) stretch from Joka to Taratala of this line was inaugurated on 30 December 2022[3][4] and after extended to Majerhat on 6 March 2024.

[5] This line will span 16.67 kilometres (10.36 mi) from Joka in the south to Esplanade in the north.

[4] The project is getting delayed due to nonavailability of land for the construction of train depot at Joka.

Some students from schools especially St Thomas Boys School, whose premises are utilised for planned Khidirpur metro station in this stretch, were granted the rare opportunity to be the first ones to ride in this Joka-Taratala stretch after the inauguration.

The extension of this line to IIM and Diamond Park for 2 km (1.2 mi) has been sanctioned in the Budget of 2012–13 at a cost of Rs.