Chatterjee, who was here to attend the convocation of Burdwan University, told reporters, "It is true he is ill and there is pressure on him to resign."
Asked who was putting pressure on Bose, Chatterjee said, "Maybe pressure from BJP, maybe pressure from a news channel."
Srinjoy was arrested by the Special Crime branch of the CBI in connection with the Saradha case on November 21 last year.
Chatterjee, who was the Chief Guest at the convocation, however, did not attend it even though he was putting up at the university guest house.