The Durrani Dynasty of what is now modern Afghanistan launched repeated invasions of India throughout its history, clashing with various native powers of the subcontinent, sometimes besting them, but never taking more inroads into the region past what we now know as Pakistan.
Would it be possible for the Durranis to push past that and take larger parts of India, perhaps (although I suspect this is unlikely) taking most or all of the subcontinent? What would need to happen to accomplish this?