Nifty Pharma News: Shares of major domestic pharmaceutical companies such as Sun Pharmaceutical, Cipla and Divi's Laboratories surged on May 13, gaining up to 3.69 per cent to hit their respective intraday highs. Nifty Pharma index witnessed strong buying interest, surging over 2 per cent to a intraday high of 21,589.1. Notably the Nifty Pharma index extended gains for the second straight day as it closed at 21,359.75 up by 1.22 per cent.