Fresh rain hampered rescue operations in Indian Kashmir Sunday a week after deadly floods swamped the Himalayan region, with medics and survivors describing nightmarish conditions in the devastated city of Srinagar.

The floods and landslides have now claimed at least 490 lives in India and neighbouring Pakistan, and rescuers are struggling to cope with the scale of the disaster.

After a few clear days, more rainfall accompanied by thunder and lightning hit relief operations in the worst affected areas of Srinagar, the normally scenic city on the Indian side.

Indian Kashmir's Chief Minister Omar Abdullah, who has come under fire over the slow pace of the rescue effort, admitted his government was "completely paralysed" in its immediate response to the disaster.

"We had no way to communicate with anyone, and other than a walkie talkie set...we were totally and completely isolated from everyone and everywhere," Abdullah wrote in a first-person account published in the Indian Express newspaper on Sunday.

Security forces have been using boats and helicopters to deliver food and evacuate survivors in both countries.

But the relief effort is fraught with danger and at least 11 people, including a bridegroom, drowned Sunday when a rescue boat carrying a wedding party capsized in the Muzaffargarh district of Pakistan's Punjab province, according to a senior government official.

While nine stranded patients at Kashmir's biggest maternity care facility Lal Ded Hospital were finally evacuated on Friday, some relatives continued to wade through chest-deep water to look for family members who had been admitted before floods struck.

One woman, who gave birth in the hospital, told AFP of her rescue from the swirling floodwaters in the hospital.

"We took refuge inside a mosque for three days after some local young men rescued us from the hospital," she said, without giving a name.

"We are in the middle of a sea without any help."

Doctors at the state-run Bone and Joint Hospital in Srinagar scrambled to treat casualties afer medical supplies were carried off by the waters.

"We need medicines of all kinds, it is a disaster", a doctor, speaking anonymously, told an AFP reporter while examining a patient. "Tons of medicines were just washed away."

Medics are having to work round the clock to help treat patients who have sustained fractures, with submerged potholes a particular danger.

"I made 20 casts today," hospital worker Ghulan Hassan told AFP as he tried to prepare the casts in a room whose floor had caved in.

- Worries of epidemic -

The new rainfall magnified the stench of death from animal carcasses, rotting vegetables and overflowing drains.

"It makes your eyes burn, gives you a headache," Mehraj-Ud-Din Shah, chief of the Indian Kashmir State Disaster Response Force, told AFP.

Officials said it was too early to assess the full extent of the disaster with many roads still impassable but Abdullah wrote that the recovery effort was "going to be a long, hard, and very steep climb".

O.P. Singh, director general of the National Disaster Response Force, said the big worry now was of the spread of water-borne diseases.

"Many parts are still submerged in four to five feet of water and we are concentrating on supplying anti-diarrhoea, anti-infection medicines and using chlorine to avert diseases," he said in Srinagar.

"We have had to halt our operations for some time and we are waiting for the weather to clear," Indian Air Force spokesman Gerard Galway told AFP.

In Pakistan, rescue operations were concentrated around the central city of Multan, home to two million people, where authorities blew up two dykes to try to stop the water inundating the city.

"Multan is practically cut off from the surrounding districts: roads and railway track were submerged," Zahid Salim Gondal, a senior government official, told AFP, adding that 29,295 people had been rescued.

Some 300 villages around Muzaffargarh have been inundated and the flooding has also devastated thousands of acres of cotton crop.

India's government estimates at least 200 people have died and 142,000 people have been rescued.

Pakistan, which has suffered a series of annual flood disasters, says 2.29 million people have been affected.

Around 290 are known to have died in the Punjab, Pakistani Kashmir and Gilgit-Baltistan regions.

burs-anb/co/jom