No its not all right to add BC certificate as an alternative to OBC certificate as rrb NTPC Plainly defines The foundations of obc certification which states that the certificate have to be issued by an authorized authority, such as a District Magistrate, Collector, Deputy Commissioner, or Earnings Officer and https://andrepxzun.therainblog.com/32384253/railway-recruitment-bangalore-last-date-rrb-apply