NEW DELHI, May 25 (AFP) - More than a quarter of some 400 Moslem guerrillas who entered Kashmir from bordering Pakistan have been killed by the Indian army, a general said here on Tuesday. "Scores of others have been wounded following retaliatory action in the Kargil sector by the Indian army," Additional Director-General of Military Operations Major General J.J. Singh told a news conference. The claim came as an artillery duel between India and Pakistan in the border district of Kargil went into its 17th day on Tuesday with heavy casualties acknowledged on the Indian side. Singh said: "The Indian army, which has been able to stabilise the situation in Kargil to a fair degree, has lost 17 soldiers, while 90 soldiers have been injured and 14 including three officers are missing." Singh also accused Pakistan of helping the intruders to cross the line of control dividing the Pakistani and Indian zones of the disputed Himalayan state. Pakistan's ambassador to India, Ashraf Jehangir Qazi, last Saturday accused India of starting the artillery duel which began on May 9 in Kashmir. Two-thirds of Moslem-majority Kashmir is under Indian control while the northern third is held by Pakistan. The neighbouring countries have fought two wars over the territory since their independence from Britain in 1947.  