First of all this is a hobby called Aeromodelling.
People are in this field before introduction of drones!!
Second "Drones" is a suspicious name given to Quads or multirotors but they are actually not!
Third Drone technology is top secret and most expensive.(even Israel,the producer of UAVs, its runway is not on google map!! See
)
Here some guys use APM or some advanced flight controller and call them Drone for sake of appreciation
See more explanation in this link how Pakistan's fool media made Chines Phantom,a Drone came from India!!!!
So please let it be a hobby not a Drone world so that DGCA can allow us to maintain it.
Some more result of miss spell and misuse of Quads are...
Finally I request to you Rc website holders plz don't sell multirotor to anyone who don't know how to use them or call them Drone.