set will be delivered in the end of April. 2018-April 5: Second TBM completes boring of second tunnel between Howrah Maidan and Esplanade station. 2018-April 20: First metro rake arrives at IFA Salt Lake Depot. 2018-May 1: The second metro rake from BEML arrives. 2018-June 20: First test ride inside depot starts. 2018-June 27: Work at Esplanade Sealdah tunnel drilling stalled due to existing steel structure in North South Line. 2018-July 4: First trial run between Central Park and Sector V. 2018-July: October deadline of inauguration announced 2018-August: Tunneling from Esplanade to Sealdah suspend due to detection of underground steel beams of Line 1. 2018-August: Due to fund crunch & other issues, initial run postponed to March 2019. 2018-August 30: Installation of Platform Screen Doors started in Karunamoyee and Central Park stations. 2018-October: Trial Runs conducted between Sector V and IFA Salt Lake Stadium stations. 2018-November: Trial Runs conducted by RDSO between Sector V and IFA Salt Lake Stadium stations. 2018-November: Speed limit of trains plying in Line 1 decreased for removing steel beams. 2018-November: Small tunnels being made using NATM method at Esplanade to remove steel beams left during North-South Metro construction in 1980s. 2018-December: Issues in software detected. 2019-January-25: Tunneling on Esplanade Sealdah section begins. TBM named Chandi starts its initial push from Esplanade station. It will take 12–15 months to complete the tunnelling. 2019-February-19: Second boring machine named Urvi starts tunnelling from Esplanade station. 2019-February: Fare chart released. 2019-April: Glitches detected during software integration while negotiating curves in line (First phase of the project till Salt Lake Stadium). Glitches have been fixed, and the signalling and communication firm Ansaldo STS has recommended 1000 hours of trial run before commencement of service. 2019-April: Inauguration delayed again. Misses April end deadline. New deadline June 2019-May: Tunnel boring machine Urvi and Chandi after initial slow start progressing steadily towards Sealdah. 2019-May-18: Gets RDSO clearance, and railway board nod. 2019-May-31: Electrification of third rail and trail run in underground section from IFA Salt Lake Stadium & Phoolbagan stations. It was the first time after 1995 that a metro trial was held underground. 2019-June-14: Inspection by fire department. Says, inadequate emergency exits in Bengal Chemical & IFA Saltlake Stadium stations. 2019-June-15: Gets international safety nod from French certifier. 2019-July-3: TBMs Rachna & Prerna successfully taken out from Curzon Park 2019-July-7: Fire dept. assures temporary permission to the 2 stations, Bengal Chemical &