The college authorities had reinstated accused R S Yadav, head of the department of biochemistry.
"Yadav has been reinstated but the government probe against him regarding the allegations of sexual harassment is still on," said college authority.
He also added, "under service rules, we can't keep an employee under suspension too long."
A B.Sc Medical student had filed a complaint with college authorities in 2008 that Yadav made sexual advances towards her.
"College authorities do not seem to be serious about the inquiry against the teacher. I am really disheartened and it certainly gives a wrong message," said the complainant.