As per sub-section 3 of section 34, [Where one or more tax invoices have] been issued for supply of any goods or services or both and the taxable value or tax charged in that tax invoice is found to be less than the taxable value or tax payable in respect of such supply, the registered person, who has supplied such goods or services or both shall issue to the recipient [one or more debit notes for supplies made in a financial year] containing such particulars as may be prescribed.
As per section 16(4) of the CGST Act, "A registered person shall not be entitled to take the input tax credit in respect of any invoice or debit note for the supply of goods or services or both after the [thirtieth day of November] following the end of the financial year to such invoice or debit note pertains or furnishing of the relevant annual return, whichever is earlier."
As per the above section, the supplier can issue the debit note to the recipient if any amount of taxable value or tax payable is less than the amount of taxable value or tax payable on such supply. In our case, the tax rate charged by the supplier is less than the rate on such supplies. therefore he can raise a debit note and also in our case, a debit note shall be issued by the supplier in the current financial year hence ITC can be claimed for a debit note till the time limit prescribed in section 16(4).