Blue Line (Mumbai Metro)

Blue Line 1 is a rapid transit metro line of the Mumbai Metro, in the city of Mumbai, Maharashtra, India. The 11.40 km (7.08 mi) line is fully elevated and consists of 12 stations, from Versova to Ghatkopar. The line connects the eastern and western suburbs of Mumbai. It was built at an estimated cost of ₹4,321 crore (US$450 million) and is operated by the Metro One Operation Pvt. Ltd (MOOPL) on a 5-year contract. This special purpose vehicle, namely, Mumbai Metro One Private Limited (Mumbai Metro 1), was incorporated for the implementation of the project. Reliance Infrastructure holds 74% of the equity share capital of MMOPL, 26% is with the Mumbai Metropolitan Region Development Authority (MMRDA).

The Mumbai Metro 1 Blue Line started operations on 8 June 2014. It has the eighth-highest passenger density of any metro line in the world. The Blue Line has the steepest curve of any metro line in India. There are a total of 64 curves on the line, with the steepest curve being 107 metres (351 ft).