The Mumbai Metropolitan Region Development Authority (MMRDA) has established the Maha Mumbai Metro Operation Corporation Limited (MMMOCL) on 10th June, 2019 to carry out the "Operations and Maintenance" of all the upcoming Metro corridors in the Mumbai Metropolitan Region (MMR). The idea is to integrate the Operations and Maintenance of all Metro corridors under one authority with objectives as follows:* To independently carry out business of Operation and Maintenance (O&M), and related functions of all Metro lines in Mumbai Metropolitan Region.* To carry out Planning, Identification, Development and Implementation of all Non-Fare Box Revenue measures.* Execute Property development and construct or maintain or lease out various facilities in relation to rail transport system.