Intense heatwave has gripped India with mercury soaring to 45 degrees in some parts of the country, meteorological department officials said on Thursday.

The Indian Meteorological Department said, in the southern state of Telangana, no fewer than 37 people have died due to the heatwave since the beginning of April.

“Yesterday, severe heatwave conditions were prevailing at many places over Punjab, Haryana, Chandigarh and Delhi,” the department said in a statement.

“Heatwave conditions at a few places over Vidarbha and at isolated places over Jharkhand, Madhya Pradesh, Madhya Maharashtra and Uttar Pradesh were recorded.”

The department also said that on Wednesday, the highest maximum temperature of 46.2 degrees Celsius was recorded at Chandrapur (Vidarbha) in the Maharashtra. Delhi, the capital city, recorded 44 degrees Celsius.

The local Telangana government advanced summer holidays for schools due to prevailing heatwave conditions across the state.

It has also issued an advisory to people not to venture out especially between 11 a.m. to 4 p.m. to avoid the severe heat.

In zoos across India, officials have put coolers in enclosures for animals in the wake of the intense heatwave.