Saira Sirohi's body was found hanging from the ceiling fan in her room by her younger sister on January 25.
A delegation of All Schools Parents Association on Saturday demanded a probe by a retired High Court judge into the alleged suicide by a 16-year-old national-level swimmer in Govind Puram area in Ghaziabad.
The members of the body met District Magistrate Vimal Kumar Sharma and submitted a memorandum in this regard.
Saira Sirohi's body was found hanging from the ceiling fan in her room by her younger sister on January 25.
Mr Sharma said if Saira's family members demand a probe by another agency, the administration would forward their request to the state government for its perusal.