Diploma

You have not specified the college you are seeking admission to. But I see that you have a Diploma. Unfortunately, Diploma is not considered as a graduation course. The minimum requirement for applying to MBA is, the candidate must have completed his/her Bachelor's degree with 50% of marks from a recognised university.

You should definitely go with this course as doing Diploma doesn't land you with good job opportunities, so you should do a degree course followed by a Diploma in animation.

Here are some colleges for you:
Kalindi College
National Institute of Design
Arch College of Designs and Business.

Hi Darshan, Candidates completed Diploma in Engineering and Technology with minimum 50% marks (at least 45% marks, in case of Backward class categories and Persons with Disability candidates belonging to Maharashtra State only) are also eligible to apply. However admission is based through counselling based on rank obtained in Maharashtra Common Entrance Test (MHT-CET)
Hope this helps!

Yes, you will get admission in 2nd year. of B.Tech as lateral entry. For lateral entry, normally you have to appear for Lateral Entry Engineering Test (LEET). You must have a minimum of 60% marks in Diploma to appear for LEET. Incase If you have not given LEET, then try for admission in Private Colleges in your area.

The upper age limit is General and OBC 25 years. SC /ST 28 years. This is for NCHMCT affiliated colleges , it may differ in the case of private colleges .

As per the UGC guidelines two regular degree/Diploma courses can not pursued together. Because you have joined the GNM Diploma course during the B.A. Course. Hence you can not claimed the benefit of other course at the same time. However both courses are legally valid, but benefit will be given for one course only.

Yes, you can go for it. However, it's very much better to continue with your graduation rate

Yes, you can do Aircraft Maintenance Engineering A.M.E. After complete your B.Tech degree. But, here no special treatment for them.