Diploma

If you have done Diploma after class 12th then you can definitely do BBA, but if you directly had entered into Diploma after class 10th then you are not eligible as BBA is a degree course and you need to pass 12th for doing BBA.

You can apply to Ara Institute of Canterbury, Unitec, Southern Institute of Technology, Manukau Institute of Technology, etc. It would be level 6 or 7 programme. Level 7 is a graduate Diploma programme.

Yes, there is an option for lateral entry.

You can certainly study interior designing after class 12th. Here is a list of best interior designing colleges in India:
National Institute of Design, Ahmedabad
Pearl Academy of Fashion
Vogue Institute of Fashion and Design
For the complete list of colleges, please visit:
https://www.shiksha.com/design/

Hi,
Yes, you can take lateral admission in any course if the university you have selected provides such options to you.
Good luck.

You can do Diploma in this field, but I would suggest you compare it with BBA in aviation management which is a highly professional course and then decide what to do.
Regards.

You need to complete UG in order to pursue PG Diploma.

You can get a job or opt for further studies.

The course fee is INR 60,000.

Yes, spectacles are allowed.