I just build my first quadcopter everything is fine but its not stable hovering it drifts 1 side when i try to take off on stabilization mode please help

Kindly share the quad spec, like what frame, which FC, motors, ESC's... with issues no one can resolve anything. share the details and if possible videos as well..

Regards
Karthik

Did you ensure the quad was perfectly flat when the Acc calibration was done .redo the calibration ensuring the quad is perfectly on a flat surface if possible without the landing gear. Try and use carpenters levelling bubble to ensure flat surface

I have dys 2830 750kv motors
Emax 4 in 1 30a esc
Apm 2.6 fc
450 f frame

In stabilise mode the quad will drift in some directions as there is no GPS correcting it's position. This is usual in stabilise mode.

If it is moving to only one side, use trims in your Tx for corrections.

It is not moving only one side i tryed to trim but not success
By the way quad completely stable hovering on loiter mode