I have purchase a land in Hosur, Tamil Nadu in May 2007, few months back when i went to Hosur Taluk Office to apply for patta. They have replied stating that it is a Adi Dravidor Land (AD Land), patta cannot be given on your name. It should be buy and sell only between SC/ST. I told him that i am an SC but the person whom i have purchased is not a same community. Kindly help me what is the best remedy for this.