You will have to enter into a Joint Development Agreement. This is an arrangement between an owner of the land and a builder where the land owner contributes the land and the developer undertakes the responsibility of obtaining approvals, property development, launching and marketing the project with the help of his financial resources.
It is an agreement between two people and therefore it is advised to register the same, in order to sabe stamp duty you can rename the deed as profit sharing lease agreement but in that case you will have to either give a plot or share some profit with the owner of the land.
The above advise has been given in light of limited facts provided and with a view that land is just being taken for the purpose of development.
Regards