Government Document: UDID & e-Card Mobile Number Update: Process and Time

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I’m Riku from Delhi and 100% blind. I want to know how to change the mobile number on the UDID Card and e-Card, and how many days each update takes. Please share only accurate information.

Aug. 18, 2026, 7:46 a.m. | Location: 1128: Delhi | Tags: Government Document Query   HV