Sinha was arrested June 2 for leading a demonstration at the state Electricity Board office in Hazaribagh town and was sent to 14 days' judicial custody next day after he refused to furnish the bail bond.
Party veteran L K Advani is scheduled to visit Hazaribagh on Tuesday to call on Sinha.
Sinha and 54 of his supporters were sent to 14 days' judicial custody on June 3 after their arrest the day before for allegedly assaulting and tying up general manager of Hazaribagh branch of Jharkhand State Electricity Board, Dhanesh Jha during BJP's demonstration in protest against electricity crisis.
In the following days, some more BJP activists were arrested and were remanded to judicial custody.
Meanwhile, the BJP on Monday started phase-wise agitation against the prevailing power crisis in the state.