Era Constructions (India), in assocation with Rani Constructions, has bagged a Rs 63.74 crore contract from Rail Vikas Nigam.According to a release issued by Era to the BSE today, the contract is for all civil works for bridges, buildings, foot-over bridges, platform earth work and connected electrical work in the entire section from Rewari toAjmer in connection with the conversion of meter gauge to broad gauge line.The contract is to be executed over a period of 18 months, the release added.