Fifteen months of the working of the Constitution necessitated amplification of article 15(3) so as to ensure that any special provisions that the State may make for the educational, economic or social advancement of any backward class citizen, may not be challenged on the ground of being discriminatory. '(`2) Sec. 2 thereof provided for addition to sub Art (4) of article 15 For a period of three and a half decades, the unending search for identifying socially and educationally backward classes of citizens has defied the policy makers, the interpreters of the policy as reflected in statutes or executive/administrative orders and has added a spurt in the reverse direction, namely, those who attempted to move upward/(Pratilom) in the social hierarchy have put the movement in reverse gear so as to move downwards (Anulom) in order to be identified as a group or class of citizens socially and educationally backward.