Maharashtra

You question is self explanatory and itself answers the query. It will be good to pursue Mass Media from Mumbai itself if you intend to work in Mumbai or India after doing the course.

If you had appeared in NATA and JEE Mains paper 2, and you cleared cutoff, then you can get admission. Without entrance exam, you won't allowed to get admission.

You can search on internet about last years question papers.

There are a lot of programming courses to pursue like C+, Java, Android, Python, Swift and Ruby.

Yes , u can do this course

NATA score is valid throughout the country, but if you are looking for a government seat, then you have to go through MAH AR CET.

With this score, it is difficult to get famous engineering colleges from Pune like D. Y. Patil and MIT. You can try for colleges like Modern college, JSPM, AISSM and Sinhagad University.

A difficult chance to get into MIT, but yes, you may try, Orelse Sushanth School of Architecture would also be a good option.
Visit this link to check B.Arch colleges based upon your rank:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor?utm_source=connect&utm_medium=CR_JEECP&utm_campaign=6919840
Then visit this link for various colleges which provides you brochure:
https://www.shiksha.com/architecture-planning/colleges/b-arch-colleges-india.
Check the link below to get a list of approved architectural colleges:
https://www.coa.gov.in/index1.php?lang=1&level=0&linkid=25&lid=26