Vocational Education

Yes, after you have completed your diploma you can get admission in engineering through lateral entry and directly into 2nd year.

Yes, you can but then MCA would be of 3 years.

just go and Google pdf is available.B.Voc Syllabus - Semester I
General Education Component
Effective English Skills
Effective Hindi or French Skills
Human Rights
Indian Culture & Philosophy
Skill Component
Computer Basics & Networking
C++ Programming
MS Office
Financial Maths & Accounting

B.Voc Automobile degree course prepares the candidates in setting up different quality guidelines, as today there is a consistently expanding worry for contamination and fuel proficiency also. After completion of this course you can be hired as Professor, Sales Officer, Automobile Engineer, Associate Professor, Sr. Officer/Executive, Paint shop Automobile, Software Engineer, Embedded Automotive, Design Engineer, Product Development Engineer etc. The average salary of Automobile can be in the range of INR. 2 lacs to INR. 10 lacks per annum.

Dayalbagh Educational Institute, Agra is one of the good colleges for M.Voc, details below:
https://www.shiksha.com/science/course/m-voc-in-renewable-energy-dayalbagh-educational-institute-agra-288376

After 12th with PCB there are many options. You can go for MBBS, BDS or any other course.
Other than that, if not interested to become a doctor then you can go with the courses that require biology background like BA/ B.Sc/courses with biotechnology or, B.Ed or other teaching courses with PhD. Apart from these, designing, management, cabin crew, acting, freelancing and many more options are open for students with PCB subjects.