"I request your intervention directing Thampu to step down from the post of principal for the duration of the investigation as he has tried manipulating evidence in his favour using the power of his position," she said in her representation to Irani.
"He (Thampu) has refused to step down from his position of power during the time of this investigation despite playing a very murky role in trying to protect the accused, Satish Kumar," she claimed in her letter, copies of which have been sent to University Grants Commission (UGC), Delhi Commission for Women (DCW) and the National Commission of Women (NCW).
The girl had approached police last month alleging that she was molested by Kumar, an assistant professor in the college's Chemistry department under whom she was pursuing research.
She had also accused Thampu of "shielding" the teacher when the matter was reported to him.
Following the meeting with the research scholar, Irani had directed Delhi University to ensure that her stipend was released on time and she was granted unrestricted access to the laboratory besides being assigned a new supervisor.