Mumbai, Dec. 26 -- The Mumbai Metropolitan Region Development Authority (MMRDA), which is looking at completing financial closure for Metro-4 (Wadala-Thane-Kasarwadavali) in January 2020, has floated tenders for 234 coaches for the line and its extension Metro-4A (Kasarwadavali-Gaimukh). The MMRDA has also invited bids for the rolling stock....