A cadre of Federal Socialist Forum party has been injured during a clash between the opponents and supporters of the new constitution in Dharan. The injured has been identified as Kumar Darnal. He is being treated in BP Koiral institute of health science. Cadres of Nepali Congress, CPN-UML and United CPN Maoist clashed with a group of Federal Socialist Forum members in Railway of Dharan today after the later tried to disrupt their program celebrating the promulgation of the new constitution. Federal Socialist Forum and Limbuwan Struggle Committee among others have enforced general strike in the eastern district from today protesting the promulgation of the new constitution.