Security arrangements have been tightened in twin districts Bokaro and Dhanbad, ahead of Holi. Police parties are on move to put the towns under foolproof security cover this festival. High alert has been sounded up on the direction of higher ups. “Patrolling has been intensified to avert any untoward incidents in the duo district. Cops were also asked to keep vigil on anti-social elements including bike riders inside the city as well as on the entry point in the cities. Miscreants would be dealt with strictly and no compromise will be made in providing security to the people,” a police official said.