How to carry forward ITC in tally after splitting the company

Hello,

We have split company 2019-20 after finalising the balance sheet of that particular year.

For March 2020 we have additional input which was credited after filing returns. Return was filed in Apr-20. If I keep opening balance of this amount in respective ledger (Input CGST and Input SGST) it is showing as difference in opening balances of the same amount.

If I keep respective actual values of Input and output ledger still it is showing difference in opening balnce in Balance sheet of 20-21. 

How do I resolve this difference in opening balance?

Thanks in Advance.

Manjiri Jadhav