Let's begin from your NATA score, it will be converted to 100, which will be 45 and then your board's marks will be added to calculate your total merit.

As this is clearly less than 100, so, to be honest, you can't get admission into any government architectural college through your NATA score even if use your OBC quota. Now coming to your JEE Paper 2 score, according to your percentile it quite hard as your rank will be around 30,000 but all the good colleges get closed before 20,000. So, I would suggest you go for it next time with uttermost dedication and hard work and you will definitely score above 100.

All the best

Hello Aspirant.

See the percentile score u have scored is not enough for u to bag a seat in the good colleges like NITs IIITs or GFTIs for pursuing ur higher studies in the field of ur interest under barch courses . U should be going for private Institution like LPU , MANIPAL , CHANDIGARH UNIVERSITY for ur higher studies. I m providing u a link for ur help.

https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/articles/jee-main-cutoff-for-b-arch-b-planning/amp&ved=2ahUKEwj7mLqy05viAhUXk3AKHSXSAKAQFjAAegQIARAB&usg=AOvVaw2MH5TbFgLJzAvPJZWHnUEp&ampcf=1

Ask if any query. Good luck