Take a flight to India and make your final stop at Guwathi Airport in Assam. After that, take a cab to take you to Kakarvitta (4-6 hours) and then take the night bus from there to Ktm. This is the best way to avoid getting your papers checked. However, don't take too much luggage as it would raise suspicion, aight?? There may be other ways too so wait for someone else to elaborate on this issue.