I don't know how exactly you got this doubt but let me be very clear about this. Only the top 2,20,000 candidates qualify JEE Main. These include the reserved categories as well. It means that the last qualifying candidate may have whatever category rank but his all india rank will certainly be under 2,20,000. You did not qualfy probably because your all india rank lies outside that number even though your category rank is 43,000.

Also I would like to ask exactly which college gave admission at closing rank of 9,00,000. I find that hard to believe. There must be some confusion so check once again!