The Thane Municipal Corporation (TMC) has cracked down on 30 illegal structures across the city as part of an ongoing demolition campaign.

A criminal case has also been registered against the offenders under the Maharashtra Regional and Town Planning (MRTP) Act in the Lokmanya Nagar–Savarkar Nagar ward for unauthorised construction.

The drive is being carried out by special squads under the leadership of deputy commissioner–rank officers.