Dear Mr. Vltreddy999,
I feel that the information furnished by you in your comments above is incorrect and baseless. There is no system of optional coverage under the ESI Act, 1948, and the rules/regulations framed thereunder.
I hope you will consult the above Act/rules/regulations, and if I am wrong, I hope you will mention the provisions of the said Act/rules/regulations so that I may be able to correct myself.
Furnishing incorrect information on this CiteHR, I feel, will lead to misleading a large number of viewers. I hope you will clarify the correct position in your comments by indicating the provisions of the Act/rules/regulations as mentioned above.
I may also further inform you, for your kind information, that incorrect coverage of any person under the ESI Act, 1948, and making them entitled to benefits (to which they are/were not entitled) is an offense punishable under section 84 of the said Act (punishable for both the covered person and the employer).