SINDHUPALCHOWK: Sitaram Tamang, hailing from Godgaun Village Development Committee- 6 of Sindhupalchowk district was injured when his drunkard father Jaya Bahadur Tamang (50) attacked him with a Khukuri, on Sunday. The son, with life threatening injuries, has been taken to Melamchi Hospital for treatment. The police have arrested the attacker for further investigation.