B.Arch

May be, you can try. Best of luck. Your JEE Score is good, but your class 12th score is quite low.

Hello Siddhesh,
The fee will be around 2 lakhs for 5 years without hostel and mess charges.
You may refer the link below for the exact fee structure for each NIT for B.Arch:
https://www.shiksha.com/b-tech/articles/nit-fee-structure-for-b-tech-2012-13-blogId-6033

To get admission into any NIT for engineering or architecture you need to write JEE main exam only.
For engineering you need to write JEE main paper 1 and for architecture paper 2.
Only if you have a good score and a top rank you can get NIT, Trichy or else you can get other NITs or GFTIs for architecture.
For architecture in IITs there is a different process.

B.Arch can't be compared to B.Tech because both are professional courses but their ideas and creative mind for thinking is different.
So, be careful about that you can't compare both but you can relate both of them as architecture is extended part of civil engineering.

Dear Akansha Saxena,
Your NATA is good enough. I think your 10+2 mark will be good.So, surely you will get IP University. Let's hope for the best. Wish you all the best!

After the seat allotment in JoSAA counselling, the documents are verified only in that institution where you have been allotted the seat.
For example: If you have allotted a seat in NIT-Trichy for Mechanical branch then you have to go NIT-Trichy and accept the seat as well as verify your documents in that institution within the schedule unless wherever you live (like someone in Bhopal).
So be careful about that.
If you like my answer then raise your hand by making an upvote.
All the best for your bright future.
Good luck.

Please read the JoSAA business rules. You have to take all the original certificates of your academic and caste. There are some certificate formats available at the JoSAA notification PDF file in the end. That you have to take the printout and take necessary action given there. Plus medical format is also given there. Download and go to a doctor take a fitness certificate.