Of the total of 838 vacancies, a highest of 609 are of executive cadre following 60 in legal, 40 in technical, 102 in ministerial and 27 canteen posts, Minister of State for Personnel and Public Grievances V Narayanasamy told Lok Sabha in a written reply.
The sanctioned strength of the CBI is 6,591.
"The occurrence and filling up of vacancies are continuous processes. Despite some vacancies in the CBI, speedy investigation of various cases is ensured through effective use and deployment of existing personnel," the Minister said.
He said the Central government has approved a scheme for engagement of Special Prosecutors and Assistant Special prosecutors on contract basis. "Till date, 43 Special prosecutors or Assistant Special prosecutors have been engaged on contract basis," Narayanasamy added.
He said the government was taking various steps to fill the vacancies and all central police organisations as well as State Police have been requested to send nomination of officers for deputation in CBI.