** Shares of GVK Power & Infrastructure fall as much as 9 pct to 5 rupees, their lowest since June 10, 2016
** Co's March-qtr loss widened, hurt by a 87 pct jump in expenses
** About 4.8 mln shares traded as of 0510 GMT, nearly twice the stock's 30-day avg
** Stock posts biggest intraday pct loss since November 2016
