Deduction u/s 80c

All the joint holders are entitled to claim the deduction u/s 80C towards repayment of principal opn housing loan.

The ratio for deduction is to be mutually dediced between the co-owners and shud be reduced in writing by way of an agreement.

for the first three options each of them can claim the deduction say in the ration 50:50.  In case of HUF the Karta of the HUF and the assessee can claim the deduction in equal ratios.

All the join holders are entitled to claim deduction in the proportion of their holding...