Two entrepreneurs were detained for hours and questioned by police allegedly for questioning Chief Minister Nitish Kumar on start-ups during an event here, police said on Thursday.

Nimi Kumar and Suresh Kumar, both in their 40s, were detained for hours after they tried to ask Nitish questions related to the state government's policy to promote start-ups and entrepreneurs in the state.

Both have been released after police found nothing against them, he said.

A senior police officer said two persons were detained for a few hours after they tried to misbehave with the Chief Minister during a function on Tuesday but denied that they were mentally tortured and harassed.

Soon after they questioned Nitish, they were detained by the special branch of Bihar police and were subsequently questioned, a close relative of Nimi said.

A family member of Suresh, on condition of anonymity, said their "crime was that they dared to put genuine questions before the Chief Minister in connection with entrepreneurship. It has sent a negative message about Bihar police", he said.