As you want to know about Redemption of SSNNL Deep Discount Bonds., so here I am providing information:

Discharged Deep Discount Bond Certificate for redemption.

Folio No.
DDB Certificate No.
Distinctive Nos.
Number of Bonds

Change of address of Sole/First holder (if any) Bank details
PAN Card Details
Income Tax Deduction Status
Date & Folio No.
Date of Receipt
Inward No.

Discharged Deep Discount Bond Certificate for redemption

how to know the status of SSNNL bond