The CBI submitted its chargesheet at Barasat Court of the district on Thursday. Among the 11 arrested accused who have been booked in the chargesheet, six had acted as sharpshooters for the murder. They are Manu Singh, Raj Singh, Gulu Singh, Mayank Raj Mishra, Vicky Mourya and Navin Kumar Singh. Sagar was earlier in TMC and worked at Shyampukur party MLA and minister Shashi Panja’s office for a long time. The first plot to eliminate Rath was hatched in December last year but it did not materialise then, the CBI has learnt.