The killing of BJP ‘Prishtha Pramukh’ Kripa Ranjan Chakma (37), younger brother to ‘Mandal’ secretary Mahat Ranjan Chakma in Jalchandra Karbari Para village under Manikpur police station in Dhalai district in the early hours of yesterday has moved the police personnel to swift action . Shortly after the incident had been reported to the police station a team of police personnel swung into action and arrested three known miscreants identified as Uttam Kumar Chakma, Braja Mohan Chakma and Hemanta Chakma from different parts of the police station area. They are under interrogation in the police station even as BJP MLA Shambhu Lal Chakma has visited the residence of the slain BJP ‘Prishtha Pramukh’. 37-year-old BJP worker was shot dead by miscreants at his residence in Tripura’s Dhalai district on Saturday. A group of gunmen entered the house of Kripa Ranjan Chakma in Jalachandra Karbari Para area and opened fire at him, a senior police officer said.BJP district committee member Ashis Bhattacharjee, local MLA Shambhulal Chakma, the party Janajati Morcha district president Hangsa Kumar visited his house and condoled the death.