The buyback offer of The Indian Energy Exchange will open on Friday (March 22) and close on April 4. The company plans to buy back 37.29 lakh shares at a maximum price of ₹185 a share. The total buyback, which would cost ₹69 crore, accounts for about 25 per cent of the total paid-up capital of the company. Shareholders whose names had appeared on the company’s record book as on February 15 can participate in the buyback, which is through the tender route.