Dear Manoharan
As per workmen compensation Act, please refer Schedule I and check the injury and its compensation percentage, and check Schedule IV for finding out her Age Factor as per her age and pay the compensation through WC Commissioner.
Hope you might have informed about the accident took place in your establishment and asked for the compensation to be paid to the victim.
Eventhough the accident took place due to her negligence in shop, the employer will be responsible as he has to ensure proper supervision at the workspot to avoid occurrence of accident/incidents.
Here in the case of WC Act, always the workmen compensation act is favouring the worker only.