Indraprastha Gas Ltd.(IGL) shares witnessed a sharp rise of more than 6% on the National Stock Exchange after reports indicated that the Delhi government might revise its electric vehicle (EV) policy and provide relaxation in the transition timeline. This uplifted investor sentiment around the stock, which has traded within a narrow range so far this year. On year-to-date basis, the shares of the company have witnessed a marginal rise of over 3%.