1. So long as your dad is alive, he can deal in any manner he wishes with his property
2. He can either sell it or gift the same even to rank stranger
3. You are not his legal heir during his lifetime
4. In law, you are merely a presumptive heir who may inherit the property after your father's demise, provided he has not sold or made a Will of the property
5. Even if you go to court, you wont get any relief
6. You will be hit by doctrine of 'spes successionis', which is mere chance of succeeding to the property, subject to above
7. During your father's lifetime, you have no legal share in his property
8. Sons having share in ancestral property is a concept under Hindu Personal law and not under Muslim Personal law
9. At the highest you can sit with your family as request your dad to give you certain share from sale proceeds of property or request him not to sell the property till you are in India. Remember he has no legal obligation to accede to your request