A weather department official said the temperature will range between 41-40 degrees Celsius and humidity will remain above 70 per cent, making the heat unbearable.

Voting started at 7 am for Patna Sahib, Patliputra, Nalanda, Arrah, Buxar, Sasaram, Karaka and Jehanabad. On Saturday, people were seen queuing since morning to escape the afternoon heat.

Although a heatwave alert was issued by the department on Saturday for three parliamentary constituencies of Karakat, Buxar and Sasaram, the other five seats Patliputra, Patna Sahib, Nalanda, Jehanabad and Arrah will continue to have hot and humid conditions. Anand Shankar, Patna-based meteorologist.

“We have advised voters to drink plenty of water. If they have to stand in queues for a long time to vote, cover their heads with a towel or umbrella,” he said.

The heat and humidity conditions in Bihar are becoming deadly, more than 110 people have lost their lives since Wednesday.