The preferential shares were priced at Rs 14.56 a share, the company said in a statement.
The fresh round capital infusion reiterates the promoter Shriram group's commitment to renewable energy venture, having already invested Rs 550 crore over the past five years through preferential allotments, open offers and secondary purchases, including this transaction, it added.
Orient Green Power is one of the major renewable energy players with 428 mw of operational wind assets and 106 mw of operational biomass assets.
Orient Power managing director S Venkatachalam said "the investment will enable the company to augment its wind energy capacity and reduce interest out go and outstanding debt."
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Equirus Capital managing director Ajay Garg said, "the new round of investment is a strong vote of confidence by the promoters and investors in the business and management of the Orient Power. The fresh capital will allow the company to achieve substantial growth and propel itself to being amongst the biggest renewable energy companies."