Section 234B

Interest under section 234B is applicable when:

Your tax liability after reducing TDS for the financial year is more than Rs 10,000 and you did not pay any advance tax.

OR

You paid advance tax, but advance tax paid is less than 90% of ‘assessed tax’.

In any one of the above cases, interest under section 234B shall be applicable. Interest is calculated @ 1% on Assessed Tax less Advance Tax.