We propose a unified theory of Hindu caste as a possible solution for the caste question that has bewildered even the intelligentsia. Our purpose in this publication is to provide a framework of reference which we are sure has popular interest. Recent genetic studies have placed before us the inference that group living had originated in Southern India at a earlier period than period of aryan diffusion. Hence it will be appropriate to devise and re-negotiate social contracts under this framework. do let us know your personal opinions.