The minor girl, who was found along with her two cousins in an agriculture field in a village in Unnao district, was taken off ventilator support on Saturday after showing improvement, a senior police official said.
The girl has shown improvement and doctors decided to take her off the ventilator, Kanpur Deputy IG Preetinder Singh said.
The girl is still not in a condition to speak to the police and narrate the incident, the DIG said.
The doctors are constantly monitoring the girl's condition and taking care of her, he said.
Heavy deployment of police force has been made at the hospital to ensure the safety and security of the girl.
On primary assessment, the girl was found in shock. As a suspected case of poisoning, she was shifted to the Intensive Care Unit (ICU) at the paediatric ward, the medical bulletin issued by the private hospital, where she is undergoing treatment, said.
The victim was admitted to the hospital in intubated condition and was on bag and tube ventilation. Later, she was shifted to the ICU and treatment was given to her, the medical bulletin further stated.
On Saturday, the third day of treatment, the girl was put off the ventilator and has been going through spontaneous respiration, it added.