In case of signature change what documents are required to be submitted?

For signature modification in case of individual, take below mentioned documents from client :

Modification form Version 1.6. (containing old and new signature)
Mention reason for changing of signature on top of modification form
Bank attestation on Modification form or Bank Verification letter (incl. bank name, Official name, emp code and signature).
Same bank should be mapped in account (BO or DP).

Note : Signature modification & Address modification request together in one modification form is not acceptable