B.Arch

Entrance examination is open NATA, and most of private colleges are still open for registration.

You have a chance of getting seat in your desired college with your marks. If you want to know in which colleges you get seat please go through the link, apply all the details and select the architecture stream from filters, then choose the best college that is suitable for you:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
All the best.

Yes, based on your NATA score which is good you will get MSRIT.

Here is the list of government Architecture College in Maharashtra
Academy Of Architecture. Dr Babasaheb ambedkar Marathawada University. North Maharashtra University. Sant Gadge baba Amravati University.
Shivaji University.

Please use JEE Mains college predictor tool for better results
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor&ved=2ahUKEwi1pZzErb3iAhUQX30KHbopA0QQFjAAegQIBhAB&usg=AOvVaw1N9BzFtyUCP4JU-2UQHQ0H

Yes, there is a chance to get admission.

Hi,
With 115/200 Marks in NATA 2019 exams and 86% score in your class 12th, you have chances to secure admission in School of Architecture and Planning, Anna University - B.Arch.

Hi,
With 105/200 Marks in NATA 2019 exams, 93.3 percentile in JEE Mains paper 2 exams and a good score in your class 12th, you have chances to secure admission in Ramaiah School of Architecture.

Hi, Congratulations.
With 107/200 Marks in NATA 2019 exams, 98.02 percentile in JEE mains paper 2 and 79% score in your class 12th, you have chances to secure admission in GGSIPU - Guru Gobind Singh Indraprastha University - B.Arch.