Several state governments on their own declare huge compensation during accidents, Thunders, snake bite, flood deaths, fire accidents, rape victims etc though there was no obligation. If the dead person is not having any criminal cases, and having good conduct, the Government may consider to pay compensation as a special case. AP state government has given compensation to some villagers who were killed in fights between Naxals and police, but it was voluntary and one can not find such judgments. Who ever causes injury to others and if the other party suffers, the principle of natural justice is that victim should get compensation.
Just make a try through some sincere social worker advocate who is experienced in Human Rights.
Also file such petition before National Human RIghts Commission.