India's Premier Explosives gains on 1.9 bln-rupee order win

** Premier Explosives NSE:PREMEXPLN gains 3.5% to 441.2 rupees' set to log best day since late May

** Stock on track to snap eight straight sessions of losses

** Co gets order worth 1.9 bln rupees ($21.7 mln) to manufacture, supply defence explosives from "international entity"

** About 770,000 shares traded, 2x the 30-day avg

** YTD, PRMR falls 15.4%

($1 = 87.5710 Indian rupees)