BUSINESSGMR to Invest Rs 500 Crore in Metro Rail ProjectNeha VermaSeptember 1, 2021September 1, 2021 by Neha VermaSeptember 1, 2021September 1, 202101040 The GMR group, which is operating Rajiv Gandhi International Airport (RGIA) here, will be investing over Rs 500 crore in a Rs 5000 crore metro...