North east India has always been famous for paradise spots which needs to be explored thoroughly.
Here are some points you might check into
Anini on Dibang valley
Nongriat village for pictures falls
Mon village Konyak tribe homeland
Tamenglong green meadows
Unakoti closevto nature where you can find a huge carving of Lord Shiva.
https://www.tripoto.com/trip/10-stunningly-offbeat-places-in-north-east-india-no-one-told-you-about-5ced39fba689d
Kindly check the above Tripoto link for more details.