SRINAGAR, India - A policewoman was killed and two of her women colleagues wounded in Indian Kashmir on Monday when suspected Muslim militants threw a grenade at their vehicle, police said. No militant group claimed responsibility for the attack in a market area in the heart of Srinagar, KashmirÂ’s summer capital, in which a civilian was also wounded.The violence came on the first day of the Islamic holy month of Ramadan during which separatist militants in the disputed, Muslim-majority region have traditionally stepped up attacks on Indian forces.