The police in Maharashtra`s Thane district seized 260 kg of ganja, worth more than Rs 39 lakh and arrested one person, an official said on Saturday.

Based on a tip-off, the crime unit-I of Thane police raided a house in Amrut Nagar locality of Mumbra on Thursday and recovered the contraband worth Rs 39.17 lakh, senior inspector Dilip Patil said.