A Ganesh idol was unearthed on Thursday during excavations at a mosque in Jambusar in Bharuch district, about 60 km from Vadodara, police said.
Bharuch's Superintendent of Police G S Malik said the idol has been kept separately for people to offer prayers.
This idol was discovered during excavations at the 150-year-old mosque in a predominantly Hindu area.
A large number of Hindu devotees flocked to the mosque to have a glimpse of the statue, he added.
Security has been beefed up in the area as a precautionary measure, Police Sub-Inspector V R Patel said.