Dear HNP,
It was nice to receive your message. It would be really helpful for HR to upgrade it. Normally, when a company is starting, HRs wouldn't have been recruited, so the factory manager would have handled all the legal formalities of EPFO & ESIC. Later, the HRs or the accounts department will carry out the functions. Therefore, most of the HRs would not have an idea about EPFO & ESIC registration.
Thank you,
M. Felix C.