Shares of Divi's Laboratories Ltd surge as much as 21 pct to 1,117.6 rupees, highest since Dec 22, 2016.
Stock posts record intraday pct gain.
U.S. Food and Drug Administration says it would lift the import alert on co's Visakhapatnam unit and will close the warning letter it had issued earlier.
Stock led gains on Nifty Pharma index, sending it higher by as much as 3.5 pct and making it the top pct gainer among indexes on the NSE.
The news about Divi's has rubbing-off impact on other pharma stocks and gives hope to particularly those which are currently under FDA scrutiny concerning some facilities, says an analyst with a Mumbai-based brokerage firm.
Sun Pharmaceutical Industries, which has received a warning letter for its Halol facility and currently awaits FDA re-inspection, shot up as much as 4.3 pct to its highest since July 27.
Dr. Reddy's Labs and Aurobindo Pharma Ltd gain 3.5 pct and 4.8 pct, respectively.
Divi's stock had risen about 18 pct this year as of Wednesday's close.