Even thoug my caste comes under obc list of state as well as centre I am unable to get the certifica

Good evening sir I am Bipin Chourasia from odisha, Rourkela sir please look at my problem and guide me. I am have been living in odisha since my birth hence my all documents are from odisha whether it's aadhar card,pan card,voter id,10,12th certificate. Last year I had given JEE I scored very badly(44.7%ile) so took a drop year joined an online batch whose one year course fees was 4000. This year I managed to scored 94.78%ile with CRL rank 80k and obc rank 24.9k. Now as my caste(Badhai)comes under odisha as well as centre list of obc I went to Tehsil to enquire about obc certificate there the officials said that as my grandparents had purchased land here around 30 years back so I am not a native of this state so I am not eligible for applying for state obc certificate and without state obc certificate I would not be able to furnish centre obc certificate there by I would not be able to get reservation in any NITs or GFTIs my father is an auto driver and family income is less than 1lakh so sir whats the use of reservation if it will be not able to uplift those who are in real need. There in tehsil they said that you go to your native state that is Bihar and apply for obc certificate there. I contacted one of my relatives and told them about this then after enquiring they told me that I don't have any documents from Bihar so it is not possible for me to make obc certificate from Bihar. Now sir I am stuck from both the sides. Sir it's 2nd of May and from 2nd week of June jossa counseling will start and if I would not get an obc certificate then I would have to change my category to general and from general I would not get any NIT or GFTIs then I would have to either join a private college or State engineering College I hope you will give the best of your advice. Thanking you Yours faithfully Bipin chourasia