No its not all right to upload BC certificate in place of OBC certification as rrb NTPC Plainly defines the rules of obc certificate which states which the certificate has to be issued by a licensed authority, like a District Justice of the peace, Collector, Deputy Commissioner, or Earnings Officer https://rrb-last-date81222.luwebs.com/33279644/railway-recruitment-bangalore-last-date-rrb-apply