Purchasing tribal land by another tribal person

It is importannt to see whether your caste is also declared tribal in MP.If yes,in that case it is better if you take prior permission of the Collector and then purchase.

Yes the person's caste is also declared as Tribal in M.P. but still the collector is refusing to give the permission for purchasing the tribal land in M.P. Is there any provision of law/ case law to show to the collector that the same caste tribal person of outside state can also purchase the tribal land in M.P. Please guide me.