A few pages of Sikh holy book 'Gutka Sahib' were found scattered outside a house in village Ram Nagar on Wednesday, the police said.
The house belonged to Sukhdev Singh, a farmer, they said.
When the police were informed, Inspector General M F Farooqi and Senior Superintendent of Police Nanak Singh rushed to the spot, they added.
Investigation revealed that the pages had been torn by Singh's mentally-challenged granddaughter, the police said.
Farooqi said a medical examination of the girl was being conducted.
