a secret mission or activity that is not meant to be openly acknowledged

any action that is done secretly to achieve a specific aim

गुप्त कार्य

English Usage: The charity organized a covert operation to provide aid to those in need without attracting attention.

Hindi Usage: चैरिटी ने ध्यान आकर्षित किए बिना जरूरतमंदों को सहायता प्रदान करने के लिए एक गुप्त कार्य का आयोजन किया।