Deduction u/s 80c (life insurance paid)

Learned Members

I am having a Question regarding Section 80C, If both Husband and Wife are working and employed in different organisations, husband paid Life Insurance Premium of Rs. 20000/- for the life of his spouse.
Can both husband and wife claim seperate deduction of Rs.20000/- u/s 80C ?

and what are the implications of same in respect to DDO, should DDO entertain this deduction and get the self-declaration in this respect from the employee, if Yes, is there any Circular or Notification regarding it ?
 

Thaks in anticipation

Nirmal Singh