Notwithstanding anything contained in these rules, the registered person shall not use the amount available in electronic credit ledger to discharge his liability towards output tax in excess of ninety-nine per cent. of such tax liability, in cases where the value of taxable supply other than exempt supply and zero-rated supply, in a month exceeds fifty lakh rupees:

Provided that the said restriction shall not apply where,-

(a) the said person or the proprietor or karta or the managing director or any of its two partners, whole-time Directors, Members of Managing Committee of Associations or Board of Trustees, as the case may be, have paid more than one lakh rupees as income tax under the Income-tax Act, 1961 (43 of 1961) in each of the last two financial years for which the time limit to file return of income under sub-section (1) of section 139 of the said Act has expired; or

(b) the registered person has received a refund amount of more than one lakh rupees in the preceding financial year on account of unutilised input tax credit under clause (i) of first proviso of sub-section (3) of section 54; or

(c) the registered person has received a refund amount of more than one lakh rupees in the preceding financial year on account of unutilised input tax credit under clause (ii) of first proviso of sub-section (3) of section 54; or

(d) the registered person has discharged his liability towards output tax through the electronic cash ledger for an amount which is in excess of 1% of the total output tax liability, applied cumulatively, upto the said month in the current financial year; or

(e) the registered person is,-

(i) Government Department; or

(ii) a Public Sector Undertaking; or

(iii) a local authority; or

(iv) a statutory body:

Provided further that the Commissioner or an officer authorised by him in this behalf may remove the said restriction after such verifications and such safeguards as he may deem fit.