What Happens if PF and ESIC Payments Are Missed? Understanding Penalties and Retroactive Deposits

Dear Adviser, If someone did not pay PF and ESIC to the employee as per the government act, what punishment would they receive? If someone has not deposited PF and ESIC for 1 year and wants to deposit both to the employee, can they deposit both PF and ESIC? I'm not sure, but I heard that PF can be accumulated retroactively by paying a fine, but I'm uncertain about ESIC. Please guide me on the rules, regulations, and government acts for PF and ESIC.

Employers need to pay along with interest for both PF and ESI.

ESI interest:
An employer who does not pay the contribution within the time limit shall be liable to pay simple interest at the rate of 12% per annum for each day of the default or delay in payment of the contribution.

In addition to the above, under the Income Tax Act, the entire amount of unpaid dues is disallowed as an expense. I think the salary itself is disallowed for not paying statutory dues of PF and ESIC.