At least 30 people have died and scores are missing after three days of incessant rain in India, officials say.
Life in India's financial capital, Mumbai, has come to a halt
Most of the deaths have occurred because of landslides and collapsed houses following heavy rain in the states of Orissa and Jharkhand.
In India's financial capital, Mumbai, schools are shut and transport systems have been hit after heavy rain.
Nearly 1,000 people died in floods and heavy rain in the city and surrounding areas last year.
Meanwhile, at least 17 people died in Pakistan after flooding in the north-eastern district of Swat, police say.
Police say a river burst its banks, submerging houses late on Sunday. Five people were rescued.
The authorities in the eastern state of Orissa say at least 21 people have been killed in two districts in the state due to landslides.
Thousands of families living in low-lying areas have been evacuated and moved to safer areas.
In the neighbouring state of Jharkhand, nine people died when a boat carrying them capsized on the Kanhar river.
Water levels in many of the state's rivers have risen sharply after two days of heavy rain.
In Mumbai (Bombay) schools and colleges have shut down and commuters struggled to wade through knee-deep water.
Flights at the international airport, the country's busiest, and train services have been delayed.
Civic authorities say they are doing their best to cope but many of the city's residents say more should have been done.
"The water-level hasn't gone down a bit since yesterday morning," a resident, Santosh Singh, is quoted as saying by the Reuters news agency.
"We are forced to wade through dirty water."