Hey Praveen,
Is your Revit model or DWG geolocated and using shared coordinates?
Also does the DWG jiggle around as you zoom in and out or does it look the same as the picture above regardless of zoom?
And lastly, if you "zoom to fit" by right clicking in an uncropped version of your plan, does the view zoom out heaps?
May not be the suggestions above, but a few items to tick off the list first haha.