Issue of validity of charges of suppression or evasion isn't question of law; can't be adjudicated i

Service Tax : Issue of : (a) invocability of extended period or (b) validity of charge of suppression or (c) validity of charge of intention to evade, is a 'question of fact' or at least, 'a mixed question of law and fact' and not a 'pure question of law'; hence, same cannot be adjudicated in writ