After climbing 10.86 per cent to Rs 1,650 -- its 52-week high level -- during the day on the BSE, shares of the company finally ended at Rs 1,604.05, up 7.78 per cent.
On the NSE, the stock settled 8.46 per cent higher at Rs 1,607.50.
Led by the sharp rally in the stock, the company's market capitalisation moved up by Rs 2,257.84 crore to Rs 31,274.84 crore.
The decision follows passage of resolutions at its Board of Directors' level and a special resolution by company's shareholders, agreeing for enhancing the limit for the purchase of its equity shares and convertible debentures by FIIs/RFPIs, RBI had said.
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The purchases could be made through primary market and stock exchanges.
As per data available on BSE, FIIs held 25.03 per cent shares on the company as of quarter ended December 2014.