In this case,we need to go to ACES Website to fill ST-3 and click on E-Payement
1.Login to www.aces.gov.in
2. Click on E-PAYMENT
3. Click on please click here
4. Fill Assessee code. Assessee code means STC code
5. Select type of tax and then Assessee detail will be automatically shown on screen
6. Press on select accounting code of excise duty.
7. After selecting “Select accounting codes for excise duty” a new tab will be open. Select accounting code and press submit
8. Select Bank name
9. Click on proceeds and then submit to the bank
10. Fill Amount. And click on submit.