I am a PG Teacher of a govt. aided school of West Bengal with Pay Scale of Rs.9000-40500/- and Grade Pay of Rs.4800/- . My son had applied for OBC Certificate one year ago but the concerned office denied to issue the same on the ground that his father, i.e. I am being the Group A employee of West Bengal Govt and so I come under the category of Creamy Layer of West Bengal. Is it true ?