Searches conducted at multiple locations including Delhi in connection with the murder of Chandranath Rath, personal aide to CM Suvendu Adhikari.
Seven-member SIT investigating possible ₹1 crore contract killing plot, interstate links, and larger conspiracy behind the May 6 Madhyamgram attack.
CBI took over the case on May 12; three contract killers already arrested from UP and Bihar as agency intensifies efforts.