Lighting problem in viewport and final render

when I render the scene in viewport, the lighting seems good and shadows are soft as you see in PICTURE but when I give it final render, lighting becomes overexposed and shadows become harsh. PLZ HELP!

Hi and welcome to BA,
sharing some info about your scene/render settings could help whose want to help you.
Just to start on something:

  1. your viewport shading settings?
  2. have you some active composite node?
  3. have you some light source disabled in 3d viewport but enabled for rendering?

Thank you so much bro
I have no 3 problem like I have extra sun light in my scene that is disabled in viewport but enabled in final render.