July 2021 - Work has started progressing at fast pace; December 2020 - PM would likely to review the project soon; October 2020 - Construction underway; February 2020 - Line has received a budgetary grant of INR2bn (USD28mn) for fiscal 2020-21; June 2017 - ITD Cem emerges as lowest bidder for constructing Kolkata Metro's ramp, box tunnels and underground station at the Netaji Subhas Chandra Bose International Airport (Biman Bandar); June 2014 - Kolkata Metro Railway authorities have approached the Railway Board to truncate the Noapara-Barasat Metro corridor at the city airport as the project is making little progress due to land hurdle; Project Cost - INR25.82bn