The incident took place last evening when the girl had gone to a nearby shop for exchanging a pair of shoes, police said, adding, the shopkeeper dragged the girl to the basement and sexually assaulted her.
The girl returned to her home at 6 PM and narrated her ordeal to the family members following which they lodged a complaint with the police.
A case has been registered under section 354 (assault/criminal force to woman with intent to outrage her modesty) of IPC and relevant sections of POCSO Act, Sahibabad Police SHO Upendra Yadav said.