I know this hasn't been an easy process for you, manu4.

Let me make it up to you by making sure you'll get the accurate computation. With this, I'd suggest manually getting the CESS. To do this, you can run the GST report in the program. Then, calculate the CESS.

Here's how:

1. Sign in to QuickBooks Online.
2. Select Reports on the left menu.
3. Go to the All Reports tab.
4. You can also create reports by clicking on Taxes View Reports > Report name > Run Report.

 I've got you this article for ideas about managing taxes in QuickBooks Online: Record Tax Payments and Match Them with Bank Transactions.

If there's anything else that I can help you with, please let me know in the comments, manu4. I'll be here to lend a hand.