Deepshikha was killed by her 50-year-old stepmother Kamlesh in Nanglasheikh village of the district yesterday, they said.
According to police, Kamlesh had asked Deepshikha to prepare food in the morning, which the girl did not. This enraged Kamlesh who first broke some items in the house and later strangulated the girl with her dupatta.
The incident came to light in the afternoon when Deepshikha's cousin came to the house.
He found Deepshikha dead on a bed and informed the family members and villagers.