Race Course police have arrested four persons, including two prisoners, on charges of attempting to smuggle ganja into the prison on Saturday.

The police said that during an interaction programme, two persons – A. Raja and L. Vinodkumar had petitioned the officials for meeting prisoner S. Sasikumar. But they did not meet Sasikumar, as no such inmate existed.

They, however, attempted to meet prisoners M. Senthil and K. Satheesh Parthiban, which raised suspicion in the minds of the prison staff. A thorough search revealed that Raja and Vinodkumar had attempted to smuggle ganja into the prison by concealing them in dates.

They had replaced dates seeds with ganja, the police said.