Digital signature of person who has died

Ajay Rajai (Tax Advocate (Consultant) I.T and Documentation of Properties)   (705 Points)

17 September 2011  
Dear Members,
 
Please guide me on the following issue.

Mr. A is the proprietor of M/S XYZ. The firm XYZ is covered under audit. Mr A died on 15th May 2011. Now the return of Mr. A is to filed with Digital Signature.

 
The legal heir of Mr. A is his wife Mrs. B . 

 
Now the return of Mr. A will be filed using login ID of Mr. A by Mrs. B as his representative. Since Mr. A has died the digital signature of Mrs. B shall be used for filing

 
Problem : As return is to be filed using the Login ID of Mr. A,  the digital signature of Mrs. B cannot be registered and therefore Mrs. B is unable to file the return

 
Please advise me the solution to this problem