How can I claim refund of the charges paid through myAadhaar portal if there is any technical error during the process?

If downloadable acknowledgement receipt (invoice)with Service Request Number (SRN) is not generated due to any technical error after processing of payment. The charges paid is refunded to your (applicant) bank account within 21 days from which payment was made. If refund is not received after 21 days  please dial 1947 (toll free) or write to This email address is being protected from spambots. You need JavaScript enabled to view it. for further assistance.