A magisterial probe has begun into the violence by workers of a private factory in Yanam, an enclave of Puducherry in Andhra Pradesh, that led to the lynching of a top official of the unit after a union leader allegedly died in police action.
The management of violence-hit Regency Ceramics, a tile manufacturing unit, has however demanded a CBI probe.
Sources in Puducherry said prohibitory orders under Section 144 CrPC were clamped in the area.