Which of the following abbreviations is matched incorrectly with its full form?

A government scheme or app is assigned a specific full form by the ministry or agency that launches it, and this officially notified expansion is the standard reference for abbreviation-matching questions; a full form that merely sounds plausible is not necessarily the one that was actually notified.

Checking each pairing against its official source: IMPRINT is a joint Ministry of Education (MHRD)–AICTE research initiative whose notified expansion matches the option given; BHIM is NPCI's payment app whose notified expansion matches the option given; and PayTM's expansion matches its standard, widely used form. UMANG, the Government of India's unified e-governance app (umang.gov.in), is officially notified as "Unified Mobile Application for New-age Governance" — the word "Governance" reflects the app's actual purpose of delivering government services on one platform. The option pairs UMANG with "New-age Generation" instead, which substitutes a different word for the officially notified one.

• IMPRINT — matches its officially notified expansion.

• BHIM — matches its officially notified expansion.

• PayTM — matches its standard expansion.

• UMANG — officially notified as Unified Mobile Application for New-age Governance; the option substitutes "Generation" for "Governance", which does not match the official full form.

Since three of the four pairings match their officially notified full forms and only the UMANG pairing substitutes a different word for the notified term, that pairing is the incorrectly matched one.