Mumbai, Feb. 1 -- The Mumbai Metropolitan Region Development Authority (MMRDA) will pump in over Rs.2,600 crore towards developing a carshed and procuring new rakes for metro lines six and nine. The authority will develop a 59.65-hectare carshed for metro line nine (Dahisar to Mira-Bhayander) at Uttan at a cost of Rs.626 crore; a bidder is likely to be finalised by mid-March. For metro line six (Swami Samarth Nagar to Vikhroli), it has already floated a tender worth over Rs.2,000 crore for procuring new rolling stock and machinery....