can anybody tell me regarding the programming of fixed wing plane using arduinouno atmega328 board ?

Hi Prateek

That is a vague question...what are you trying to program? Autopilot, Auto stabilization? Arduino Atmega 328 board? Do you mean Ardupilot?
You might want to read up a little on Ardupilot beforehand

All the best
GS

i am beginner in fixed wing plane so i want few links or suggestions for basic programming (controlling servo motor and brush less motor  using ESC) in arduino.

You havent exactly answered the question. Why do you want arduino to control it because it is usually controlled manually with the help of transmitter/receiver. Do you want to make your own tx/rx.

And why is this topic in the multirotor section?

prateek I would suggest you do some homework ........ google if your best friend and teacher.... and once you get stuck sumwhere you can ask the forum. Vague question will only put in in the forum members bad books.....

Simple questions like Why you want to do what you want to do will provide enough clarity than reaching to the how you do what you want to do,

Once you have your direction clear, better targeted discussions will emerge, and there are wonderful people around, willing to speed you up 

Programming proportional servo control using an Arduino should be like your 5th project on the Arduino, the 1st one being blinking an led, colloquially known as the "hello world" of microcontrollers.