You are a Co borrower not co owner of said property. The property is solely owned by your brother. In such situation you will not be able to claim.try to add your name in the property as a co owner then only you can claim.

You cannot claim ownership of flat 

2) property is standing in name of father 

3) you are mere co applicant of home loan 

1) Yes, you can claim for your share if it is mentioned at the time of registration in the sale deed. If it's not mentioned than by default 50% share you can claim it.

Ownership will be acc. to contribution in purchase. Co applicant means , 50 % ownership.

If you are a co-owner too then you claim the property else no. Only after the death of father intestate you will have right to claim the same 

Based on the amount you paid towards the loan amount you can file a declaration suit to claim your share in the property.

1.  Typically no.  BUT IF you file a Civil Suit for Declration, supported with the Loan documents, payments, ITR, and other documentary evidence, THEN you would be able to achieve your goal.

1. The property was purchased in the name of your father, so he alone will be considered as its sole owner.

2, Now if you wish to be its sole owner or half owner , your father will need to make a registered deed in your name .

3. Else merely on the basis if co applicant of loan you will not be treated as its sole or co share holder.

1. As per the information mentioned in the present query, makes it clear that you are the co- applicant in the loan but not with the half ownership.
2. Now it depends upon the the act of the co- applicant and the ownership with respect to the payment of the loan.
3. Basiclaly, you being the guaranteer to the loan nothing more than that, but at the same time if you can be involved in suing loan instalments from your pocket also (even a small amount) then you approach the court as there are certain exceptional cases in which this has happened.

Hi,

You may not claim ownership in the property on the basis of house loan alone. 

Dear Sir,

If your father relinquishes or release his rights over the property then only you can claim your title and ownership over the property.

Co-applicant cannot claim ownership in the property even for a share in the property.

You are a co-applicant only for the purpose of loan and not a share holder in the property.