You can create a journal voucher for CST adjustment with Decrease of Input Tax as the nature of adjustment.
To create journal voucher for CST adjustment
1. Go to Gateway of Tally > Accounting Vouchers > F7: Journal.
2. Click J: Stat Adjustment to enable required options in Stat Adjustment Details screen.
3. Debit the CST ledger created under the group Duties & Taxes.
o Enter the Rate, Assessable Value and Schedule Serial No., and select the Schedule Name in the VAT Details screen.
o Press Enter to return to voucher screen.
4. Enter the amount in Debit column.
5. Credit the input VAT ledger.
o Enter the Rate, Assessable Value and Schedule Serial No., and select the Schedule Name in the VAT Details screen.
o Press Enter to return to voucher screen.
The journal voucher appears as shown below:
6. Press Enter to save.