The Ministry had in September red-flagged the promotion of certain officers following allegations of impropriety.
"The Defence Ministry has forwarded to CBI complaints against these two officers and has sought a reply," defence sources said today, adding that the government will not tolerate corruption at any level.
The CBI will now look into the complaints and report back to the Ministry.
Giving a background to the case, sources said that a meeting of the Special Promotion Board of the Army was held last year to fill up the vacancy of three Lieutenant Generals for which about 33 officers were considered.
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However, following the meeting of the Board, a series of complaints against some officers surfaced, many of which were being circulated on the social media too.
Taking cognizance of the matter, Defence Minister Manohar Parrikar himself looked into the issue.
It was found that one of the two officers, against whom the Ministry has roped in the agency, had faced a CBI inquiry few years back over allegations of corruption in a project undertaken by Border Roads Organisation, sources said.
The CBI did not find enough evidence for criminal prosecution. "They suggested that this does not fall in the ambit of criminality, it falls in the ambit of disciplinary procedure guidelines", they added.
In the meantime, his promotion came up and he got the Discipline and Vigilance (DV) clearance since there was no formal proceedings against him.