B.Arch

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.

Reporting centre and allotted college is one and the same thing.

Yes, there are chances for your admission for B.Arch in JMI. Till then wait for the list.

No, you have to take NATA for doing architecture.

If you cross the limit of 70 marks, then you will be able to apply for architecture colleges.
You will definitely get any of the architecture colleges in India.
If you tell me your exact NATA score and class 12th marks, then I will be able to counsel your college and predict which college you might get.
If you like my answer, then raise your hand up by making an up vote.
All the best for your bright future.