CBSE 10th

Zaid, , if you are interested in becoming an Engineer join integrated Diploma B.Tech course where you save your one year as well as pressure of entrance tests.
After doing a diploma you get direct admission in second year of B.Tech. There are many universities in India that are offering you these integrated Diploma- B.Tech courses. Some of them are also offering you scholarships based on your percentage in your previous qualification.
So, i feel instead of simply doing a diploma and then again starting with the search for a college/ university for B.Tech or doing 12th and then giving entrance exams and wait for admission in some good institute.it is better to take admission in an integrated Diploma-B.Tech course.

There are many good institutes in Mumbai, It is really tough to directly comment on which one is best among, especially in INDIA for domains like VFX/Graphic designing/ web designing, animation and VFX/editing/post production or gaming etc. where many institutes offer many types of courses for different duration for almost all the same pipeline .
We need to see the content of the course , duration, cost , infra, earlier students outputs and skill developed , in-time course completion record , certification process & delivery of certificate in time etc.
Also Same Brand has different centers and branches and unfortunately all does not perform the same . Some centers are doing great some not, in vary place to place centers to centers and also on the local management & team.
So its always good to visit the institute personally, speak to them, see the track record and then decide if its up to the mark as per your requirement.