In a significant development for Mumbai, Maharashtra Chief Minister Uddhav Thackeray on Monday flagged off the trial runs for the city's 2A Yellow Line and 7 Red Line, both elevated Metros, and other projects, officials said.

Soon after the symbolic green flags were waved by Thackeray, Deputy Chief Minister Ajit Pawar, Mayor Kishori Pednekar, and other ministers of Shiv Sena-Nationalist Congress Party-Congress alliance, the Mumbai Metropolitan Region Development Authority (MMRDA) commenced the trial runs.