Section 74 - Determination of tax not paid or short paid or erroneously refunded or input tax credit wrongly availed or utilised by reason of fraud or any wilful misstatement or suppression of facts.

Determination of Fraudulent Tax Evasion: notice triggers liability for unpaid tax, interest and escalating penalties; prompt payment concludes proceedings.

Determination of tax liability arising from fraud, wilful misstatement or suppression is initiated by a show cause notice requiring payment of specified tax, interest under section 50 and a penalty equal to the tax; the officer must issue the notice at least six months before the limitation for assessment, may serve a supplemental statement treated as a notice under section 73 where grounds match, and must determine and order tax, interest and penalty within five years from the return due date or erroneous refund.