The children's deaths were caused by disruption in oxygen supply between August 10 and 11, 2017 at the BRD Medical College in Gorakhpur, Chief Minister Yogi Adityanath's constituency.
Gorakhpur hospital tragedy: Grieving father files complaint against Uttar Pradesh Health Minister, others
Rajbhar, in a letter, claimed that his child died due to disruption of oxygen supply and has blamed UP Health Minister.
The UP government has ordered an inquiry by the chief secretary and suspended the principal of the hospital, Rajiv Mishra.
Dr Kafeel Khan was hailed as a hero after he reportedly bought oxygen cylinders with his own money when its shortage led to a crisis last week at the state-run hospital.