"We have taken all precautionary measures including intelligence sharing, erecting check posts and deployment of additional forces in all vulnerable areas of the districts bordering Nagaland," DGP S Nithianandam told reporters here today.
The DGP said security was also strengthened throughout the state to maintain law and order.
On April 2, three Army personnel were killed and four injured when suspected NSCN militants ambushed their vehicle. Arunachal Pradesh's Tirap district bordering Nagaland.