The CBI on Wednesday filed a supplementary chargesheet against two accused — Sanjeev Punalekar and Vikram Bhave — in a Pune court in the 2013 murder case of rationalist Narendra Dabholkar.

While Bhave is lodged in Yerawada jail under judicial custody, Punalekar, who is a lawyer, is out on bail.

Prakash Suryawanshi, the Central Bureau of Investigation's (CBI)special public prosecutor, filed the supplementary chargesheet in the court of assistant sessions judge S. R. Navandar, presiding over a special UAPA court in the city.

Dabholkar (67), a renowned anti-superstition activist, was shot dead by unidentified gunmen while on a morning walk here on August 20, 2013.