An acknowledgement or agreement to do something.

A certification or confirmation.

प्रमाणपत्र

English Usage: "The document required his isa to verify its authenticity."

Hindi Usage: "दस्तावेज़ को इसकी प्रामाणिकता के लिए उसके प्रमाणपत्र की आवश्यकता थी।"