Interest on FDR's Bifurcation is possible in Tax Return

One of the my client face complicated situation.

1.Client is senior citizen.

2.He Got FDR Interest income  from bank of Rs.8.60 Lacs & his income fall in 20% Slab Rate.

3.He Made FDR Around of Rs.60 Lacs (Rs.35 Lacs own fund & rest of amount taken from his wife & son by cheque for that FDR, for getting Higher Rate of Intt. or Sr.Citizen Benefit)

4. 26AS Shown FDR Intt. of  Rs.8.60 Lacs in his hand, No TDS Deduted,15G/H Filed.

5.Question is...??

- FDR Interest bifurcation is possible? When 26AS Shown FDR Intt. of  Rs.8.60 Lacs in his hand. No TDS Deduted.

- His Wife & Son is Want to Take/Claim FDR Intt. in own ITR on pro rata basis or any other method.