Last rites of Brahmeshwar Singh, the chief of right-wing upper caste landlord militia Ranvir Sena, who was shot dead on Friday, will be performed at his home town in Bihar's Ara village on Saturday evening.
The police said Singh was taking a morning walk on Friday when some unidentified gunmen shot him dead at Katira Mohalla under Nawada police station.
The news of his killing triggered violence in Ara, forcing administrations to impose curfew in the area after the incident on Friday.
Bihar Chief Minister Nitish Kumar assured of a probe to track down the people behind the killing.
Nitish Kumar said: "We have appealed to all to maintain peace. There would be probe to find out the guilty. The perpetrators will be punished."
According to reports, violence that started in Ara after the incident took place on Friday morning spread in other corners of the state.
Police reinforcement was rushed to the area and a curfew was imposed in Ara after the incident.
Supporters of Brahmeshwar reportedly created disruptions in the state by destroying public properties and burning buses. They even broke windows of Patna Rajdhani Express.
Director General of Police (DGP) Abhay Anand was manhandled by the agitators when he visited Arrah on Friday.
He said a police team has been formed which will remain in Ara till the case was solved.
"We will do all to defuse tension and solve the case," he said.
As the news of the killing spread, violence broke out in Ara. Policemen were attacked and a vehicle was torched by protesters.
Singh was released from jail last year July.
The banned Ranvir Sena was formed by Bhumihar Brahmin landlords. It was formed to curb the Dalits and other members of the scheduled caste community as well as the Maoists.
Ranvir Sena, which was dominant in the 1990s and were behind several massacres of the lower caste Dalits, was a spent force in recent years, but the killing could invite a reprisal and revive the old class enmity in Bihar.
From Bhojpur district where it was formed, the Ranvir Sena spread to Jahanabad, Patna, Rohtas, Aurangabad, Gaya, Bhabhua and Buxar districts.