You secured a good percentile but it might be  above the cut off(74.3) last years. So, you really need more percentile to get NIT . Try getting more than 90 percentile,so that you will get NIT seat for sure. With the present percentile it is a bit difficult to get the seat. So, Do the best for jee main april. Do hardwork

Your approximate rank will be:(100-percentile)*869010/100 i.e, 1,56,682 general rank.