Piramal Healthcare (Company) has opted for buy-back of shares as it is a better tax efficient method of maximizing value to shareholders. The Board of Directors has approved buy-back for purchase by the Company of a maximum of 41.8 million equity shares, representing 20 percent of the total number of shares, from the shareholders of the Company. The buy-back will entail a cash outflow of up to Rs. 2,500 crore ($523 million).