Tanwar demanded a high-level inquiry against NDMC Enforcement Department Director Neeraj Bharti by the Anti-Corruption Bureau of Delhi government alleging that he was involved in graft.
The allegation by Tanwar comes against the backdrop of a dispute between him and Bharti which saw both lodge departmental and police complaints last week claiming one was manhandled and abused by the other.
The VC, a BJP leader, also alleged that Bharti was being supported by the ruling AAP as Delhi government was disappointed over his appointment to the post by the Centre ignoring the chief minister's recommendation.
Bharti, meanwhile, rubbished the allegations as "motivated and baseless".
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"These are baseless allegations. I am being framed and he (Tanwar) is trying to cover up the complaint raised by me against him. I demand that if there has to be any investigation, it should be donw after his removal to ensure that the probe is fair and unbiased," he said in response to the graft charges levelled by the NDMC vice-chairman.
Tanwar, who had denied the manhandling allegations, had later filed a counter complaint against Bharti, accusing him of manhandling him.
In the wake of the complaint by Bharti, AAP had demanded Tanwar's removal from the post of vice-chairman as the party charged that he was a "serial offender".
The Delhi, Andaman and Nicobar Islands Civil Service (DANICS) Officers' Association has come out in Bharti's support and demanded the Home Ministry's intervention into the issue.