Renew Power is planning to raise $400 million as green bonds overseas to refinance its old loans.
With this, the renewable energy major is joining a host of Indian companies which are raising funds to repay old debt.
Early this month, Reliance Industries raised $5 billion for its telecom and new energy projects.
The Adani group is in talks to raise $1.5 billion to refinance old loans while Vedanta group is also in negotiations to raise $1.25 billion.