A voter turnout of 52.35 per cent was recorded in five Lok Sabha constituencies in Bihar till 5 pm on Monday, officials said.
Around 55.30 per cent turnout was registered in Muzaffarpur, 53.81 per cent in Hajipur, 53.13 per cent in Sitamarhi, 50.46 per cent in Saran and 49.01 per cent in Madhubani till 5 pm.
Polling began at 7 am in Muzaffarpur, Madhubani, Sitamarhi, Saran and Hajipur Lok Sabha constituencies and will continue till 6 pm, said a senior official at the CEO's office, according to PTI.
More than 95 lakh voters were expected to vote for 80 candidates at 9,436 polling stations.
Of the total voters, 45.11 lakh are women, 21 lakh are under 29 years of age and 1.26 lakh are in the age group of 18-19 years.
Talking to reporters in Patna, Bihar BJP president and Deputy Chief Minister Samrat Chaudhary said, "Voting is going on very smoothly in all five constituencies in the state today."
Union Minister of State for Home Affairs Nityanand Rai cast his vote on Monday at a polling booth in the Hajipur Lok Sabha constituency.
"I urge people to exercise their franchise in large numbers. It's a festival of democracy," he said after casting his vote.
Rai is seeking re-election from Ujiarpur Lok Sabha constituency where voting took place on May 13.