1. You cannot acquire agricultural property either by sale or by gift from your parents, though you can inherit agricultural property as a successor in interest/legal heirs after the lifetime of your parents.
2. For inheritance of agricultural property ther is no requirement to obtain permission from RBI, the only condition for such inheritance is that it can be inherited after the lifetime of the owner of the property by virtue of legal heirs to the deceased.
3.You cannot inherit the agricultural property from your parents during their lifetime.
4. Acquiring an agricultural property by a NRI/OCI on lease is also prohibited.
5. If you want to be confirmed about the property to be transferred to your name now itself then you can ask your parents to transfer the same by a testamentary disposition, however it will take effect or can be enforced only after the death of the testator.
For your information even the registered Will can be cancelled or modified by the testator during his/her lifetime, therefore there is no guarantee on that.
6. If your brother wants to transfer his property by a gift deed to your father, he can very well do so, however your father cannot immediately transfer that property to your name, but he can add this property in his Will bequeathing this agricultural property to your name along with any other property he may desire to transfer to your name by the Will..
7. Your father can very well transfer his plot i.e., the housing vacant land to your name, there is no embargo on it.
8. Your brother cannot transfer the same proeprty twice, once by settlement deed and net time by a gift deed.
In any case he cannot transfer agricultural proeprty to your name though you can do so on the property lying on your name.
9. For properties in India, a foreign will, once proved and deposited in a court of competent jurisdiction, or a properly authenticated copy of the will and letters of administration will be recognised by the Indian Courts.