Govind Pansare was shot dead near his house by two unidentified men in February this year.
Sameer Gaikwad, arrested in the murder case of rationalist Govind Panasare, today claimed that an unidentified person tried to pressurise him to agree for a narco-analysis test.
He made the complaint during a court hearing which he attended through a video conference from Kalamba central jail.
Magistrate SS Yadav today extended his judicial custody till December 5.
Mr Gaikwad, a follower of the conservative Hindu group 'Sanatan Sanstha', also alleged that he was even offered Rs 25 lakh and told that he would be made an approver if he agreed.
The incident took place on October 9, when he was being brought to the court, he said, adding that he couldn't see the man's face as he (Gaikwad) had a veil on his face at the time.
The court asked the police to investigate Mr Gaikwad's claim and file a report.
Mr Pansare, a CPI leader and a noted rationalist, was shot dead near his house by two unidentified men in February this year.