While the Chief Minister refrained from naming the underground organisation, sources had earlier indicated that the state government was in talks with one faction of the banned United National Liberation Front (UNLF).
The authorities are looking into whether it is an act of some anti-India elements. They are probing whether there is a possibility of any security threat from the unidentified drone.
The chargesheet also includes a section related to murder as it was alleged that the violent mob that paraded the two tribal women had also killed two family members of the women victims.
The NIA said Seiminlun Gangte was involved in a transnational conspiracy hatched in by Myanmar-Bangladesh based terrorists to “wage war” against India.
Meanwhile, medical students from JNIMS and Shija Academy of Health Sciences organised a demonstration calling for the arrest of those responsible for the suspected murder of the two missing Meiteis.