Doubt regarding concessional loan from company

Hello guys.

I have a very big doubt. One relative of mine approached with a big doubt regarding concessional loan received from his company for his daughter's marriage. 

He left the company in May 14 and his April n may salary was received after deducting the loan received along with interest which is 5%. Kindly help me in understanding how he can reduce his tax burden on this since he is afraid he might have to pay tax on whole of the two months salary.

TIA

:-)