You should read my post about Uttarakhandis declaring independence movement. Militants can be recruited from Garhwal , kumaon and gorkha rifles, terrain is also mountains. Pretty doable.
Pakistanis want to ruin youth in these states through drugs. Punjab gone, now they are trying in Haryana and later they will try in Sikkim and Uttarakhand.
If that happens then it will be a big headache for govt. Immediately steps must be taken to protect Uttarakhand and NE. This must be treated as RED ALERT. They should have done long ago. Most of the high profile security people also come from these places. They are the best fighters.