For Update of Email ID and/ or request of AO Registration number/ User ID, send request letter to NSDL. For format of request letter click here.
Request letter should be forwarded to NSDL at the following address:
NSDL e-Governance Infrastructure Limited
1st floor, Times Tower,
Kamala Mills Compound,
Senapati Bapat Marg,
Lower Parel (W),
Mumbai - 400013.
Super scribe the envelope of request for update of e-mail ID and/ or request of AO registration number/ User ID with "Request for Update of Email ID and/ or request of AO Registration number/ User ID"