India's Adani Infra will purchase a 30.07% stake in construction firm PSP Projects for 6.85 billion rupees ($81.2 million), the latter said on Tuesday.Adani Infra, owned by a unit of Indian billionaire Gautam Adani's flagship Adani Enterprises,

Adani Infrastructure will purchase a 30.07 per cent stake in PSP Projects for ₹6.85 billion, valuing the firm at ₹575 per share. An open offer for additional stakes will follow, as the company has an order book worth ₹65.

Prahaladbhai S Patel, one of the promoters of PSP Projects, is the seller who entered into a share purchase agreement with Adani Infra (India) Limited by selling 1.19 crore equity shares of the company, representing up to 30.07% of the paid-up equity share capital of the PSP Projects.

Billionaire Gautam Adani agreed to buy a majority stake in PSP Projects Ltd. as his ports-to-power conglomerate seeks to enhance its engineering and construction capabilities to execute infrastructure projects.

Adani Infra, part of billionaire Gautam Adani's Adani Enterprises, will buy shares in PSP Projects from its chairman and largest shareholder, Prahladbhai S Patel. The Adani Group, which operates in areas like ports and power,

Shares of Gujarat-based PSP Projects surged 14.5% to Rs 452.45 on the BSE following reports that the Adani Group is in talks to acquire a 60.14% majority stake in the company. The deal could trigger an open offer for an additional 26% stake from public shareholders.

The Adani Group is in advanced stages of negotiations to buy stake in PSP Project, sources with knowledge of the matter told CNBC-TV18. Sources said that the Adani Group may acquire 60.14% stake from its promoters.