Hi,
The Rubber Act of 1947 and The Kerala Land Reforms Act (KLR Act) of 1964 are very important in this case. You may go through it. In brief, it is suggested that KLR Act imposes certain restrictions on ownership and possession of landed properties in the State of Kerala. In the case of any other person including a Trust, Company, body of individuals etc the limit is ten standard acres subject to a maximum of fifteen acres. Rubber, Tea, and Cardamom are the principal plantations that are exempted from ceiling limits. You need not to take permission for initial plantations.