Reliance Infrastructure (R-Infra) laid the 103-km second power line of its 1,500-km Western Region System Strengthening Scheme.

The second line has been commissioned three months after the first line.

R-Infra chief executive officer and director Lalit Jalan said this project was bagged on competitive bidding and is tariff-based, and different from all the cost-plus projects which they have been doing until now.

"The returns for this tariff-based project will be in the range of 16 per cent," he added.

The INR14bn ($310m) project has a concession period of 25 years and will connect Gujarat to Maharashtra, cutting across three important industrial belts of Ahmedabad, Surendranagar and Mehsana, reports Business Standard.

All the lines are expected to be commissioned by the second quarter of this fiscal and up on completion, the project will enable the flow of 4,000MW of power.