Answer:
The name of the alliance of several northeast groups is The North-East Democratic Alliance or NEDA.
Step-by-step explanation:
The alliance was established after Bharatiya Janata Party led National Democratic Alliance which includes parties like Asom Gana Parishad and Bodoland People's Front formed its first government in Assam formed on May 24, 2016. The motive of the new political front was to protect the interest of the people of the region as well as uniting non-Congress parties in Northeast India.