Chief Justice of India (CJI) Sharad Arvind Bobde's mother was duped to the tune of Rs 2.5 crore allegedly by the caretaker of a family property here, a police official said on Wednesday.

The accused, Tapas Ghosh (49), was arrested on Tuesday night and a Special Investigation Team (SIT) of the Nagpur police is looking into the matter under the supervision of DCP Vinita Sahu, he said.