Kolkata Metro Line 3

Prime Minister Narendra Modi inaugurates the Joka-Taratala stretch of Purple Line of Kolkata Metro on December 30, 2022.

It is partially elevated and partially underground: around 8.5 kilometres (5.3 mi) of the project will be elevated and the rest 6.32 kilometres (3.93 mi) of the metro line will be underground.[4] The project is getting delayed due to nonavailability of land for the construction of train depot at Joka. In 2019, RVNL was given the land required for building the depot and the construction for its boundary wall and land development started in February 2019.[6] Tenders for its construction and plant & machinery were invited in April 2020.[7]

Construction was further delayed in September 2018 due to the Majerhat Bridge collapse, the metro was being built right next to the bridge.

Tender for Majherhat to Esplanade underground section has been floated in 1st week of December 2019.

By 15 September 2022, the stretch from Joka to Taratala has been fully constructed and electrification has been done. Testing trials are underway from Joka to Taratala using the old decommissioned Metro Rakes. Eventually in service there will be new air conditioned metro rakes. The stretch from Majerhat to Esplanade is under construction.

Prime Minister Narendra Modi inaugurated the Joka-Taratala stretch, including Joka metro station of Kolkata Metro's Purple Line on 30 December 2022 in the presence of West Bengal Chief Minister Mamata Banerjee and Indian Railway Minister Ashwini Vaishnaw. 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.[8][9][10]

The work has been sanctioned in 2010-11 for the new Metro line from Joka to B.B.D. Bagh for a length of 16.72 km (10.39 mi) at an anticipated cost of Rs. 2619.02 Crores. But, later the route was shortened and planned to terminate at Esplanade. A separate Depot is under construction in Joka. It is being built by RVNL and the tender has gone to Simplex Infrastructures. 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. 294.49 Cr. The execution of this work has been entrusted to RVNL.

There are 3 phases in this line-

• Joka to Taratala (Operational)
• Taratala to Esplanade (Under construction)
• Diamond Park to Joka (Planned)

• 
  ICF Medha rake MR 418 on the day of inauguration of line 3 at Joka metro station
• The day of inauguration of phase 1

Line 3 (Purple Line)
No.	Station Name		Location	Phase	Opening	Connections	Layout	Coordinates	Notes
	English	Bengali
1	Diamond Park	ডায়মন্ড পার্ক	Joka	3	Planned	Vivekananda Mission School Bus Stop	Elevated
2	IIM	আইআইএম
3	Joka	জোকা		1A	Operational	Joka bus Depot Diamond Park Bus Stop			Also known as Diamond Park
4	Thakurpukur	ঠাকুরপুকুর	Thakurpukur			Thakurpukur Police Station Bus Stop Thakurpukur Bazar Bus Stand
5	Sakherbazar	সখেরবাজার	Behala			Thakurpukur Bus Depot Silpara Bus Stop Behala Sakherbazar Minibus Stand Kadamtala Bus Stand			Also known as Silpara
6	Behala Chowrasta	বেহালা চৌরাস্তা				Behala Chowrasta Bus Stand
7	Behala Bazar	বেহালা বাজার				Behala Bazar Bus Stop
8	Taratala	তারাতলা	Taratala			Ajanta Cinema Bus Stop Taratala Bus Stand			Also known as Pathakpara
9	Majerhat	মাঝেরহাট	Majerhat	1B	Under Construction	Majerhat Station DH Road Mint Bus Stop Majherhat Gurudwara Bus Stop
10	Mominpur	মোমিনপুর	Mominpur			Mominpore Bus Stop
11	Kidderpore	খিদিরপুর	Kidderpore	2		Khidirpur Station Khidderpore Crossing Tram Stop Khidderpore Bus Stop	Underground
12	Victoria	ভিক্টোরিয়া	Maidan			Hastings Tram Stop Victoria Memorial Bus Stop PG Hospital Bus Stop Birla Planetarium Bus Stop			Also known as Hastings
13	Park Street	পার্ক স্ট্রিট	Park Street			Park Street Bus Stop Blue Line
14	Esplanade	এসপ্ল্যানেড	Esplanade			Blue Line Green Line (Under Construction) Esplanade Bus Station(WBTC,SBSTC,NBSTC) Esplanade Tram Depot			International Bus Terminus. Also known as Dharmatala / Chowringhee

• List of Kolkata metro stations
• Kolkata Metro Rolling Stock
• 2018 Kolkata bridge collapse
• Kolkata Suburban Railway