A letter sent to 13 states, including Jharkhand, by the Union Ministry of Home Affairs on Maoist efforts to expand to new areas said that they planned to strengthen their Eastern Regional Bureau which was guiding the movement in all the states of the eastern region.
"... The North-East is another region where the CPI (Maoist) is trying to spread its wings ... With the objectives include strengthening the outfit's Eastern Regional Bureau, procurement of arms/ammunition/communication equipment," the six-page letter said.
The NSCN (I/M) also appeared to have been used for training to the rebels, it said.
The letter, however, said it would not be easy for the Maoists to establish themselves in the the Northeast abounding in ethnicity based militias, but they could use their 'theoretical support' to 'nationalities' and to gain a foothold in the region and forge relationships with ethnic militant groups.