Is single PF registration for 2 group company allowed

We have different PF registration for our different group companies. Recently I have come across a position that we can have a single PF registration number for more than 1 company.

For example we can have a single PF registration for holding company and its 2 subsidiary Company (Group company). In this system we can deduct PF of covered employees of all 3 companies and deposit the same with PF department under single registration number.

Is this single PF registration for more than one Group Company is valid?

If yes please share relevant extract of PF Act/ PF rules/ PF Notification/ PF Circular which allows said single PF registration.

Thanks

Ankur