You always try to deviate the attention from the right topic. What i have asked for that your most reputational source Norman Gerald Barrier (1981). The Census in British India: new perspectives. Manohar. Retrieved 22 May 2011 is bihar concentric, it doesn't say anything about yadavs of whole india, like the same way you have told me about my source of James todd references. So how you can claim that all yadavs are shudra???