** Shares of Filatex India FLTX.NS jump 8.2% to 52.09 rupees
** Stock set for best day since July 2025, if gains hold
** Polyester yarn producer posts 16.6% rise in Q3 profit, helped by increased sale of higher-value products
** Q3 rev fell 1.8%, but expenses fell at a faster rate of 2.5%, aiding FLTX's profit
** Q3 EBITDA jumps 24% thanks to higher premium sales
** FLTX turns YTD positive, up 6.2% this year
(Reporting by Nandan Mandayam in Bengaluru)
((Nandan.Mandayam@thomsonreuters.com; Mobile: +91 9591011727;))