More than 100 people are feared killed by a heat wave which has struck central regions of South Asia in the last two weeks, officials said.
Children look for water in Lucknow, India
A third of those reported to have died were in northern Bangladesh.
The southern Indian states of Andhra Pradesh and Orissa have been particularly badly hit.
Parts of Nepal and Pakistan are also experiencing searingly hot weather, with recent temperatures in these areas over 40C.
Reuters news agency quotes officials in Andhra Pradesh and Orissa as saying there have been over 55 heat-related deaths in the last two weeks.
Most of the deaths were among women and children. They died of dehydration, heat stroke and diarrhoea.
Temperatures soared to over 45C last week through parts of the central region of South Asia, with Orissa recording 48.5C on 4 June.
The Indian capital, Delhi, was sizzling at 42C on Monday.
Officials in Nepal said at least five people had died from extreme heat.
Officials in Bangladesh said early monsoon winds may bring the mercury down somewhat over the next week.
This would be in line with the typical South Asian weather pattern for this time of the year with the heat wave travelling east to west.
As temperatures in the east of South Asia eased from the mid-40s centigrade to the low 40s, western regions, including Pakistan and eastern Punjab in India, are hotting up.
Nawabshah in the southern Pakistani province of Sindh recorded 50.5C over the weekend.
Lahore recorded 45C and Sargodha in Pakistan's central Punjab 48.8C.
Hospitals in central Punjab said at least 10 people may have died from heat related diseases in various cities.
Met officials in Pakistan have warned of continuing hot and dry weather for the current week.
Early monsoon winds may take at least a week to ease temperatures west of south and central India, they said.