Hello aspirant,
Yes, you have qualified Jee mains 2019. But only qualifying will not fetch you any nit/iiit/gfti through josaa counselling, your rank is too low for that, even your category won't help here.
If you have home state quota of north eastern states, then you can try for some north eastern nits like nit arunachal Pradesh, nit Sikkim,nit meghalaya, nit manipur.
You can try for some private or state universities which accept jee mains score such as Chandigarh university, Nirma, cv Raman college.
Or take a drop and prepare for jee once again.
Hope it helps.