NEW DELH, India: A chain of low level radar system is being set up on the entire Indo Pak border as a part of elaborate air defense system. According to a report published in Indian press media. According to reliable information, this system has already been installed and its effects or results are being studied. It is added that this three year project is expected to be complete by mid-1991. This project is considered crucial in the light of Pakistan getting advanced fighter planes from U.S.A.