You can record decrease in output tax in journal voucher using the options in Stat Adjustment Details.
To create a journal voucher for TDS adjustment
1. Go to Gateway of Tally > Accounting Vouchers > F7: Journal.
2. Click J: Stat Adjustment to enable the required options in the Stat Adjustment Details screen.
3. Debit the output VAT. Enter the VAT Rate and Assessable value in VAT Details screen. Enter the tax amount.
4. Credit the ledger grouped under Current Assets. The journal voucher appears as shown below:
5. Press Enter to save.