All the following that results from assault is considered as grievous hu, except:
Contusion over scalp
Emasculation
Fracture of femur
Severe body pain for 15 days
Comma due to head injury is grievous hu, but even hospital stay of 20 days will not be included as grievous hu. IPC 320 : Grievous hu IPC 325 : Punishment for voluntary grievous injury.