If the second company doesn't do background check like most startups it should be fine

Software Engineer

Product Owner

Your UAN will always show that and it might create problem in next companies who do thorough BGV.

May be talk to previous company’s HR or manager to update LWD and update FnF accordingly.

All fine except epf, once any employer pays EPF they get access to our UAN they see our history, this might cause issue

But Sometime it will credited with 1 or 2 months delays by companies so not an issue

What happens when you join your new company while you are still on notice period?