According to the police, the three were found having liquor in a restaurant where liquor is not allowed.

Sources said, the police undertook the operation in wake of a large Saturday crowd in the sector and rounded up around 50 persons from the Sector 17 Inter-state bus terminus. They also took into custody 15 persons from other parts of the sector, reportedly, for not being able to convince the police about their purpose for being there.

They all were, however, released after verification, sources added.