They said rampant infrastructure development without a plan is making the fragile Himalayan ecosystem even more vulnerable to the effects of climate change which acts as a force-multiplier.
Swirling floodwaters have paralysed normal life and marooned over 1.20 crore people.
The IMD has also issued a red-coded warning alert to the Odisha and West Bengal coasts.
Maharashtra is expecting its active caseload to reach 11.9 lakh by April 30, compared to the current active caseload of 5.64 lakh, Thackeray said.
Floods have forced people to eat rats to survive as there is nothing left to eat. M I Khan reports from Patna.
Twenty teams of the NDRF, comprising about 900 rescue persons, have been deployed in the state.
The water level rose above the danger mark in Haridwar and Delhi and the level at Bhakra dam was a foot above the permissible mark.
The floods have affected 31 lakh people across 13 districts and also widely damaged crops in different parts of the state.
At present, 2,265 villages were inundated and 1,12,667.06 hectares of crop area has been damaged across Assam, the Assam State Disaster Management Authority (ASDMA) said.
India's National Disaster Response Force on Monday began withdrawal of its men from quake-hit Nepal after the country asked foreign rescue teams to end their work.
'He will conduct aerial surveys and take part in review meetings, where aspects of relief and rehabilitation will be discussed,' the PMO said in a tweet on Thursday night. Cyclone Amphan has left 72 people dead and thousands homeless in West Bengal, battering several parts of the state and washing away bridges and swamping low-lying areas.
Landslides blocked roads, many villages went without electricity and the death toll climbed to 52 as authorities on Wednesday faced the aftermath of the rains that had battered Uttarakhand for over two days.
Andhra Pradesh chief minister Jagan Mohan Reddy has announced Rs 10 lakh ex gratia for bereaved families.
Tamil Nadu government deployed state and national disaster response force teams in Kanyakumari district, which bore the brunt of the rain fury.
The blast took place at the shop in Rohta Bazaar, which was run by Kaliyar Mansoori. His son was running a carpet factory behind the shop and its workers could be among those trapped under the debris, District Magistrate Rajendra Prasad said.
The Centre has assured all help to Odisha and Andhra Pradesh where a "very severe" cyclone is expected to hit on Saturday and sent nearly 500 personnel of National Disaster Response Force for relief and rescue operations.
At least 36 people were killed and 19 injured when a bus carrying passengers skidded off the road and rolled down into a 300-foot gorge in Jammu and Kashmir's Doda district on Wednesday, officials said.
The move comes amid hectic diplomatic manoeuvring between the two countries over a host of issues like Nuclear Suppliers Group and designation of Masood Azhar as a terrorist by the United Nations.
'Yaas' is likely to cross the Odisha-West Bengal coasts between Paradip and Sagar Islands around noon on May 26 as a very severe cyclonic storm with wind speeds of 155-165 kmph, Kolkata's Regional Meteorological Centre Deputy Director Sanjib Bandopadhyay said.
At least six people were killed when a three-storey building collapsed in Madhavnagar locality of Baroda.
The human toll in the floods and relentless rain across the country reached almost 200 by Thursday, even as thousands in Gujarat, Rajasthan, Assam, Odisha, West Bengal, and elsewhere were forced out of their homes into temporary shelters.
The cyclone, according to an IMD report early Sunday, is developing into a severe cyclonic storm over the Bay of Bengal and can potentially become a very severe cyclonic storm in the next 24 hours, S N Pradhan, the chief of NDRF said in New Delhi.
Heavy rains triggered by northeast monsoon and a low pressure area over Bay of Bengal lashed several parts of Andhra Pradesh for the fourth consecutive day on Friday, prompting authorities to evacuate thousands of people from low-lying areas.
Prime Minister Narendra Modi took stock of the situation, and assured all possible assistance to Andhra Pradesh Chief Minister Y S Jagan Mohan Reddy. The prime minister also chaired a meeting of the National Disaster Management Authority (NDMA) to assess the situation.
The National Disaster Response Force has deployed its teams in vulnerable areas of Gujarat to deal with cyclonic storm Nilofar that will hit the state's coast on Friday.
Sahu fell into the unused 80-feet-deep borewell, located in the backyard of his house in Pihrid village in Malkharoda development block, around 2 pm on Friday while playing.
The floods have also damaged crops in 2 lakh hectares of land.
The death toll has climbed to 12 in the first wave of flood in Assam this year.
Child protection groups are worried about unaccompanied children in Uttarakhand, reports Kavita Chowdhury
Concern is growing among healthcare experts who believe that if people do not follow the lockdown or social distancing seriously, the situation can quickly go out of control.
'If a major earthquake of the kind that hit Nepal hits us in Delhi, 35 per cent of our homes would be destroyed.'
The India Meteorological Department (IMD) has forecast 'extremely heavy rains' at a few places in Marathwada, Mumbai and other parts of the coastal Konkan region of Maharashtra in the next 24 hours.
Tamil Nadu Chief Minister J Jayalalithaa on Tuesday gave away a total sum of Rs 98 lakh as relief to families of 14 persons killed in the June 28 building collapse near suburban Porur.
The death toll is Jammu and Kashmir mounts to nearly 200 and thousands still wait to be evacuated.
Villages are flooded, roads have washed away and railway tracks have submerged under the rising waters.
Flood victims have been fighting for survival and living in temporary shelters nearby railway tracks with lack of food items. They are yet to get any help from the government, reports M I Khan.
Voicing his deep concern, the UN chief said that the "hospitals in the south of Gaza are already at capacity and will not be able to accept thousands of new patients from the north."
Rescue teams from India and 33 other countries were on Saturday asked by Nepal to leave as it prepared to launch massive operations to rehabilitate millions of uprooted victims of the devastating temblor that has killed at least 7,365 people, including 41 Indians.
Using drones and remote-sensing equipment, rescue teams intensified efforts on Wednesday to reach the 25-35 men trapped in a sludge-choked tunnel since the Uttarakhand glacier disaster three days ago and more than 170 remained missing, hopes of finding them alive fading with every passing hour.