1) since your father died in accident driver of the vehicle would be charged with offence under section 30$A of IPC for causing death by negligence
2)"The owner is liable if the act or wrongdoing ( driving rashly and running over someone) is under the consent or permission of the owner. Under civil and criminal law, the relationship between the car owner and driver is defined as 'master' and 'servant' and the master cannot be held liable for the wrongdoing of the servant, unless it is proved it was done under such consent or permission by the master.
3)legally, the onus is on the driver to rush the injured person to hospital for treatment. "The car owner may not be responsible directly, but he also has the moral responsibility to help in rushing the injured to the hospital if he's in the car or even other wise when he comes to know of the accident.
4)Where death or permanent disablement of any person has resulted from an accident arising out of the use of a motor vehicle or motor vehicles, the owner of the vehicle shall, or as the case may be, the owners of the vehicles shall jointly and severally be liable to pay compensation in respect of such death or disablement
5)When the car is insured, the insurance company takes over the compensation liability.
6) you can file claim before motor accident tribunal for payment of compensation amount