Tripura Peoples Front blocks Agartala-Sabroom national highway till from morning on Wednesday demanding justice in the fireman Biswajit Debbarma shot death case. Party activists of TPF blocks the National Highway at Madhavbari and Garji area. At both places activists burned tyres showing the agitation. Biswajit Debbarma, who received head injuries during the clash with the anti bru protestors at panisagar in North Tripura, was shifted to GBP hospital, Agartala on Saturday night but succumbed to his injuries. 40-year-old Biswajit Debbarma, who was a fire service employee.