Before I started my project I set the budget for Rs.30000. Let us start with the basics. Quadcopter is a Uav which has four rotors in which two rotors rotate in clockwise and other two in anti-clockwise direction. It has four electronic speed controllers (esc) to control the speed of each motors and a battery depending upon your flight time you have to select your battery. First lipo I used was zippy compact 2200 mah battery, it gives me a flight time of 10 minutes.
 
                Among all the parts frame is the most important. A high strength frame gives low vibrations and protects the electronics that's all about basics . In next  topic let us discuss about flight controller and selection of electronics depending upon your requirement for which you use your quadcopter