1. Sir, both EPF MPs Act, 1952 and ESI Act, 1948 are Central laws and has no relevancy with so called "Himachal Labour Law" as you have mentioned.
2. It will be more better if you study and examine above Acts and also download relevant material from the websites of above Central Organisations, study and examine the same.
3. If after going through the above Acts and rules/regulations framed thereunder and other literature after downloading the same from relevant websites, if you feel any doubt, then you can mention and raise the same in this Cite for comments from the seniors/experts.