Current technology is changing day by day, it is important for every nation to protect themselves from intruders. In this paper, the authors have developed a low cost robotic device capable of accurately and safely targeting and firing of an intruders who enters into a restricted. The main objective of this robotic system is to provide a best security system for “Border Security Force (BSF)” in order to eliminate the terrorists, also for star hotels, shopping malls, jewellery show rooms, etc. Where, there can be threat from intruders or terrorists. Since, human life is always precious, these robots are the replacement of fighters against terrorist in war areas. Firing of the targets takes place by the gun which can be automatically moved towards the target based on the proximity sensor arranged in some random places. This movement of the gun can be done automatically and manually.