Diploma

You can get admission in Amity University for AE after completing Diploma in ME. You need to take an entrance exam.

Surely, you can pursue aeronautical engineering after the completion of Diploma in ME.

As for your requirement, the best university for Architecture is the RIMT university in Punjab. The admission procedure or fee structure of this university is not costly as compared to other universities. For your reference http://rimt.ac.in/school-of-architecture-and-planning.php.

If you want to do a journalism course in Punjab, these are the best college/university for the Diploma in journalism which is listed below:
Chandigarh University
PTCE Group of Institute
RIMT University http://rimt.ac.in/
GGI - Gulzar Group of Institutes
Chitkara University etc.

Yes, you can definitely get it.
All the best for your bright future.

Check the below link:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor?utm_source=connect&utm_medium=CR_JEECP&utm_campaign=6919840
All the best for your bright future!

Yes, NATA/JEE is mandated for entry into architecture course.

Hi,
Yes, you have a fairly good chance with the above-mentioned score to get a seat in Jadavpur under Diploma quota.