Foreign Ministry spokesman Masood Khan said small arms fire came on Friday from the Indian side of the Line of Control -- the de facto border splitting the disputed Himalayan region into Indian and Pakistani-run areas.

"On January 21, between 3:00 and 6:00pm, at that time there was a violation from the Indian side. We showed restraint throughout," Khan told a regular press conference in Islamabad.

The Pakistani allegation came after India said some 15 mortar rounds crashed into Indian-held Kashmir last Tuesday, followed by another 10 on Thursday night.

Pakistan has denied all the Indian claims.

Meanwhile, security in revolt-hit Indian Kashmir was tightened Monday, with officials saying troops were ready to foil possible attempts by Islamic militants to disrupt India's Republic Day celebrations.

A three-tier security blanket has been thrown around Bakshi stadium, the main Republic Day venue in the state summer capital Srinagar, which has been the target of Muslim rebels in the past.

Troops have taken up positions in houses close to the stadium and in nearby government-owned buildings to guard against attacks.

Border Security Force personnel have joined local police to carve out fresh lookout points in Srinagar.

"This has been done to keep a vigil on anti-national elements," a paramilitary officer stationed near the stadium said.

Rebels fighting Indian rule in Kashmir since 1989 routinely carry out attacks on the holiday.

"We have made foolproof security arrangements for Wednesday's functions in the stadium," the officer said.