The agency had said investigation in the case was going on and it will file a supplementary charge sheet once it is over.
Along with the charge sheet, the central agency had also attached statements of witnesses, who were working as police officers under Vanzara and others.
The statements of witnesses have been cited as evidence by CBI in the case while Vanzara's counsel has claimed that the witnesses were earlier accused in the case.
Vanzara (59), a former DIG, was suspended for his alleged involvement in a string of fake encounter cases.
He had resigned from IPS on September 1, 2013 accusing Narendra Modi government of having failed to protect the interest of policemen jailed for encounter deaths while they are implementing a “conscious policy” of Gujarat government for eliminating terrorism.
