Uttar Pradesh Congress chief Ajay Kumar Lallu was arrested in Agra after he sat on a dharna, demanding granting of permission to the buses arranged by the party to enter the state, police said on Wednesday.

Senior party leaders Pradeep Mathur, Vivek Bansal and Manoj Dixit were also arrested, they said.

'A case has been registered against Ajay Kumar Lallu under various sections of the IPC and the Epidemic Act at the Fatehpur Sikri police station. Lallu was arrested on Tuesday evening, and he along with other Congress leaders were put in the Police Lines,' senior superintendent of police, Agra, Babloo Kumar said.

On Tuesday, Lallu and Priyanka Gandhi Vadra's secretary were booked by the police after the state government said a list of 1,000 buses submitted by the party to ferry migrant workers contained registration numbers of auto rickshaws, cars and trucks.

Also, records showed that many of the buses in the list did not have valid fitness certificates or insurance papers, the BJP government said, accusing the Opposition party of playing with the lives of workers.