Answer
(Fatwa: 166/D=13/k=1432)
It is not right to get home loan to decrease income tax. Your tax shall be deducted but you will be involved in the repugnant sin of interest based transaction and a victim of its curse as Almighty Allah says:
يَمْحَقُ اللّهُ الْرِّبَا [البقرة : 276]
Also the holy Prophet Muhammad (صلى الله عليه وسلم) said: If a man uses a dirham of interest it is more hideous than committing 36 times adultery.
If you really are in exigent need of home loan, you should write it in detail for what purpose do you want to take home loan?
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband