We are working on a college project based on Quadcopter. When we are directly connecting motors with escs to receiver. Then Motors are rotating. But when we connect all Escs through flight controller, and we give full throttle motors are not rotating. Plzz help us soon

Which flight controller do you have? What firmware? Which ESCs? Which motors? Which transmitter/Receiver? Info is needed

You have to arm the flight controller then only the motors will spin. Please mention the flight controller detail

As Mohammed Naveed said, you have to arm the flight controller. To arm it, for most of flight controllers you will need to hold the throttle stick at bottom right position or maybe bottom left position. Then it will beep and start the motors..