Hi Krishnan,
Please check whether the Snap to Grid option is enabled in you Launch pad,if it is enabled just un-check and then try to drag and drop.
Below option will be available on right corner of the Launch Pad screen
Image may be NSFW.
Clik here to view.
Image may be NSFW.
Clik here to view.
Kindly let me know whether its working or not
Thanks
Rathankumar P
