I 'll rather address the question of if they have used violence or not because the term "terrorist" seems rather tricky to me. We all know that the Maoist have used violence to persue their political goals. We also have to keep into account that Maoist also has a military organization aside from a political organization. Like any other military around the world, it will try to impose the goals set by its political masters by use of force (or violence) if needed. To impose the will (or the goals) set by its political masters is the ultimate goal of any military around the world wether it be US Military or Indian Military or Chinese Military or Nepali Military or Nepali Maoist Military. There is no question about if the Maoists as a military organization ever used force or violence to impose their will or achieve goals. It isnt hard to imazine that evey military organization in every other country will have a history of use violence. RNA is not an exception nor is Maoist military.