The Resistance Front (TRF)- an offshoot of Pakistan-based Lashkar-e-Taiba (LeT)- claimed responsibility for Sunday's terror attack in J&K's Ganderbal, which killed six construction workers and a doctor, reports said. TRF commander Sheikh Sajjad Gul reportedly masterminded the attack. TRF has targeted Kashmiri Pandits, Sikhs and non-locals in J&K in last 1.5 years, India Today reported.