NATA Eligibility

First of all Congratulation on your marks in JEE Mains Paper 2 , YES you are welcome to LPU and I think most probly you will get seat in B.Arch as Merit prepared with weightage of 50% marks for aptitude tests (NATA 2021 or JEE Main (Paper II)) and 50% marks in the qualifying examination, subject to eligibility criteria. Altough for you infomation the eligibility is to Pass with 50% aggregate marks in 10+2 with English, Physics, Chemistry and Mathematics and pass with 50% aggregate marks in Physics, Chemistry and Mathematics Or pass with 50% in Diploma (any stream) (3 years) recognized by Central/ State Govt. (with Mathematics) or equivalent, subject to qualifying marks in NATA 2021 or JEE Main (Paper II) or qualifying marks in any specially designed aptitude test in Architecture conducted by the competent authority of the Central/ State Governments (as/if allowed by the statutory body for 2021-22).
For Indian students programme Fee (per semester) is120000 INR but I think you will easily get large amount of scholarship with this much marks in JEE MAINS paper 2. For more information kindly check LPU's website. Thanks you.