Asfand bhai,
It is normal. It comes from my car as well for first few seconds of start up and then after warming up belts disappears. Caused by dry belt normally or sand/dirt between pulley and inner area of belt. Cleaning engine bay may solve problem. Sometime it comes in cold winter morning from most cars.
Another thing which normal mechanic used to do is to put very small amount of grease on inner side of dry belt. Kharch kharch sound will certainly finish but later belt may slip on pulley and will cause problem.
