GUWAHATI, Dec 30: CRPF IG NES Prakash D said that that the year 2017 has been a year of remarkable achievements for CRPF officers and men. The North-Eastern Sector which supervises counter-insurgency operations in Lower and Central Assam and Meghalaya has been able to bring in peace and stability in these areas, a press release said. During this year 150 insurgents/linkmen and suspects were apprehended and a huge quantity of arms and ammunition recovered. Various contraband items were also seized in operations, the release said.