IN the run-up to every Independence day in Assam, the violence graph invariably rises as militant groups call for a boycott and the government tries to counter it. This year was no different. On August 11, suspected ULFA militants exploded a bomb at the 13,000 kilolitre depot of the Indian Oil Corporation at Thekeraguri in Nagaon. The depot was destroyed, the loss running to crores. But what is worrying the state administration more is that after a four-year lull, a fratricidal clash has erupted between the ULFA and its former members.