The deal was made through the Corporate Finance Group of Piramal Finance by introducing a new product - a Flexi Line of Credit - for the renewable energy sector, the company said in a statement.
"This aims to make a line of funding available to the borrower based on operational projects, with the flexibility to draw/repay during the tenure," it said.
ACME, with a portfolio of over 1.8GW, is present across the 14 states. PFL had first invested Rs 499 crore with ACME in July last year, together with its partner APG.
ACME Group Chairman and Managing Director Manoj Kumar Upadhyay, said, "the current funding provides us with the required flexibility to invest in solar and electric transportation business and ensure timely completion of projects.