(Code developed by Gopal Krishna) Programming languages are faster than the GUIs. Specially, when we have to process lots of images, codes play a great role in doing the job faster. When we mosaic multiple scenes, we require images to be in one projection. For Instance, if we are working with Sentinel-2 or Landsat images, they come in UTM projection. some times to cover a study area, multiple images are required and these images may be in different UTM zones. In order