HG Infra Engineering, in a joint venture with Kalpataru Projects International, has emerged as the lowest bidder (L1) for a Rs 1,415 crore Maharashtra Metro Rail Corporation contract. The project involves designing and constructing a 20.527-km elevated metro viaduct for the Thane Integral Ring Metro Project in Maharashtra. HG Infra holds a 40% stake and Kalpataru Projects International a 60% stake in the JV. The contract is for execution under the Engineering, Procurement, and Construction (EPC) mode and is to be completed within 36 months.