"On a tip-off, a joint team of district administration and police raided five places in Pandharinath area and rescued nearly 40 children employed in these units," Childline's local director, Wasim Iqbal told PTI.
All the children are aged between 8-12 years and majority of them belong to West Bengal and Bihar, while one of them said that he hailed from Nepal.
The children were shifted to a local shelter home.
Iqbal said cases will be filed against owners of these units under relevant section of the Child Labour Act.