Thanks for joining this thread, @AlokSharma.
The complexity of your concern requires assistance from an accounting expert since it was already closed in prior years. That said, I suggest performing this process in collaboration with your accountant or any other competent financial practitioner to ensure that everything is accurate and avoid messing up your books.
Furthermore, here are some articles you can bookmark to help you with fixing your previous reconciliations:
Please know that you can always get back to this thread if you have other questions or concerns about managing your bank reconciliations in QBO. I'll be around to provide the information you need. Keep safe!
