The signature can be changed by couriering the required documents or by visiting the Zerodha head office.

The following documents are required if they are being couriered or handed over at any branch office:

• Account modification form (PDF):
  The following have to be filled in the account modification form:
  • Details: Change of signature.
  • Type of change: Modification.
  • Existing details: Old signature
  • New details: New signature.
  • New signature in the F box.

• Banker's letter (PDF): The letter must have the banker's seal and signature, along with the new signature.
• Self-attested copy of the PAN card.
• Self-attested copy of the address proof. The address proof can be any one of the following:  Driving license, Voter ID, Passport or Aadhaar. If Aadhaar is being submitted as proof, ensure that a masked Aadhaar is submitted, i.e., black out the first 8 digits of the Aadhaar number. Only the last four digits should be visible. To download a masked Aadhaar online, visit myaadhaar.uidai.gov.in/ and tick the Do you want a masked Aadhaar? option while downloading Aadhaar.
  

Courier all the documents to:

Zerodha,
153/154, 4th Cross, J.P Nagar 4th Phase,
Opp. Clarence Public School,
Bengaluru - 560078

If a client visits the head office, the following documents are required:

• Account modification form (PDF) , which must be signed in the presence of a Zerodha employee.
• Self-attested copy of the PAN card.
• Self-attested copy of the address proof. The address proof can be any of the following:  Driving license, Voter ID, Passport or Aadhaar. If Aadhaar is being submitted as proof, ensure that a masked Aadhaar is submitted, i.e., black out the first 8 digits of the Aadhaar number. Only the last four digits should be visible. To download a masked Aadhaar online, visit myaadhaar.uidai.gov.in/ and tick the Do you want a masked Aadhaar? option while downloading Aadhaar.