HRA

Yes, provided loan should be in name of the employee and debited from his account.

If the house is completed then he can claim loss form house property u/s 24.

hra calculation

  actual receive

 rent paid-10%of salary   

 40/50 % of salary which ever is less exemt

rent payment whole amount not allowed only interest part allowed deduction u\s 24 of income tax act

and you mentiom deduction u\s 80c

there is not allowed deduction u\s 80c