Parts of Delhi recorded the season's first 'warm night' as the minimum temperature stayed over 30°C, with Safdarjung logging 31.9°C, five degrees above normal, making it the warmest night in May in 14 years.
The India Meteorological Department (IMD) has issued an orange alert for heatwave conditions in the city until at least May 27.
Isolated severe heatwave conditions were expected on Thursday, with the maximum temperature likely to hover between 45-47°C.
Delhi's air quality remained 'moderate' with an air quality index of 160 at 10am on Thursday, down from 168 at 4pm on Wednesday.
