India has rushed elite security forces to its western state of Gujarat after an intelligence report that some 10 militants may have crossed over from Pakistan, police said Sunday.

Security has been strengthened at all major installations in the coastal state following a warning from the central intelligence authorities, the state police director-general said.

The death toll from caste unrest in northern India has risen to 28 but violence has subsided, officials said Thursday, as a court asked authorities to investigate reports of rape during the riots.

Large-scale violence gripped northern Haryana state at the weekend after the Jat caste led protests to demand preferential treatment in government jobs and education.

Troops and police on Monday killed three militants holed up in a government building in Indian Kashmir, ending a three-day gunbattle in which five soldiers and a civilian also died, police said.

The fighting broke out when rebels ambushed a paramilitary convoy on Saturday, killing two troopers before taking refuge in the building on the outskirts of the state capital Srinagar.

Members of the Jat caste in a northern Indian state have staged riots and arson attacks to demand preferential access to jobs and education, and at least 19 people have been killed.

Here are key questions about India's caste system:

A second soldier was killed Sunday in a continuing gunbattle between militants and troops and police in Indian Kashmir, taking the overall death toll in the day-long clashes to five.

The attackers, thought to number three or four, ambushed a paramilitary convoy on the outskirts of the restive region's main city of Srinagar on Saturday, killing two soldiers and wounding another 13, officials have said.

Ten people have died in caste protests which triggered widespread arson and looting in a north Indian state, police said Sunday, as New Delhi faced a water crisis after mobs shut down a key supply.

Thousands of troops with shoot-on-sight orders were deployed on Saturday in Haryana state, a day after week-long protests turned violent with rioters setting fire to homes and railway stations and blocking highways.

A packed passenger bus plunged off a bridge into a river in western India Friday killing at least 37 people, an official said, in one of the deadliest road accidents in recent years.

The incident happened when the driver lost control and veered off the road into Purna river in Navsari district, some 285 kilometers (180 miles) from Ahmedabad, the main city of Gujarat state.

A college picnic to the beach turned into a tragedy on Monday when at least thirteen students drowned off India's west coast after they went swimming, police and officials said.

The tragedy was the latest drowning incident in India, where many people are unable to swim and lax safety standards mean beaches are often without lifeguards.

Indian counter-terror police have arrested three alleged Islamist radicals suspected of conspiring to stage an attack on India, after they were deported from the United Arab Emirates, an official said Friday.

The three Indian nationals were arrested on arrival at New Delhi airport from Abu Dhabi by investigators from the National Investigation Agency (NIA), a federal police unit that probes terror offences.

French President Francois Hollande vowed Monday not to weaken his resolve against terrorism as he held talks with India's leader on security cooperation and a long-delayed defense deal.

Hollande said he and Indian Prime Minister Narendra Modi had agreed to step up cooperation on counter-terrorism after deadly attacks on Paris in November that recalled the 2008 assault on Mumbai.