Dear Min deep,
The death may be accidential or natural, if its within the factory premises.
Follow below steps,
1) Inform to superiors & Top management authorities
2) Rush him to the hospital
3) File a FIR with your circle police station
4) send accident intimation in prescribed format to factory inspector
5) send accident intimation to insurance company if your company holds any policy related with WC & rasta appatti.with any insurance provider company.
The process actual starts after this which is really critical & headache to HR but i have just given the startup points to you. what exactly you need to do after such incident.
Arun J.