Assam Director General of Police (DGP) Kuladhar Saikia on Friday said the district police chiefs have been alerted for the possible entry of State-based extremists flushed out of Myanmar during an extensive raid on their bases in that country.Mr. Saikia also said the fallout of the operation in the neighbouring country has been discussed with his counterparts in Arunachal Pradesh and Nagaland.Indian security forces had stepped up vigil along the 1,643 km border with Myanmar — specifically the Arunachal Pradesh and Nagaland stretch adjoining Myanmar’s Sagaing Division, where the National Socialist Council of Nagaland-Khaplang (NSCN-K) is based — after the Tatmadaw’s crackdown on the bases of the extremists since January 29. The Myanmar Army is called Tatmadaw.“We have taken note of the development in Myanmar and have asked the district police to be vigilant,” Mr. Saikia said.Safe havenMost extremist groups of the Northeast — United Liberation Front of Assam-Independent (ULFA-I), the B. Saoraigwra faction of the National Democratic Front of Bodoland (NDFB), and the Kamatapur Liberation Organisation (KLO), for instance — have their camps around the NSCN-K’s base in the Naga Self-Administered Zone of the Sagaing region.According to reports in the Myanmar-based The Irrawaddy, the Tatmadaw took control of the extremists’ camps in a bloodless operation. The reports said a ULFA-I member was killed in the encounter while all extremists fled as some 400 soldiers raided the area.‘Not reading much’The Irrawaddy quoted NSCN-K leader Kyaw Wan Sein as saying that their cadre had withdrawn to let the Tatmadaw occupy its headquarters in the Taga village on January 29 in order not to disrupt the ongoing peace process. Members of other extremist groups from the Northeast were also flushed out from nearby camps.“The Myanmar Army has carried out the raids, but we are not reading much into it as they conducted such operations earlier, too,” an officer of one of the Armed Forces in the Arunachal Pradesh sector said. “Since the extremists keep using the dense jungles and hills for hit-and-run operations from their illegal bases in Myanmar, we cannot rule out the possibility of their trying to cross over to escape being captured by the Tatmadaw,” the officer said, explaining the watch along the border.The NSCN-K, formed by S.S. Khaplang in 1988, has been the mentor of other Northeast outfits. It had signed a peace deal with the Myanmar government in 2012, three years before junking a 14-year truce with the Indian government.There had not been any confrontation between the NSCN-K, which was allowed to set up a liaison office in the town of Hkamti, and the Tatmadaw, until last week.