gauhati india indian military weapon terrorism world's hottest chili conducting tests military decided thumb-sized bhut jolokia ghost chili make tear gas-like hand grenades immobilize suspects defense officials tuesday bhut jolokia accepted guinness world records world's spiciest chili grown eaten india's northeast taste cure stomach troubles fight crippling summer heat scoville units scientific measurement chili's spiciness classic tabasco sauce ranges scoville units jalapeno peppers measure chili grenade found trials indian defense laboratories fact confirmed scientists defense research development organization kalia defense spokesman northeastern state assam told press effective nontoxic weapon pungent smell choke terrorists force hide-outs srivastava director life sciences department delhi headquarters drdo srivastava defense research laboratory assam trials produce bhut jolokia-based aerosol sprays women attackers police control disperse mobs 