Andhra Pradesh

Hi,
What do you mean by occasional student? If its distance learning that you are refereeing to, yes, you can pursue MCA post completion of BCOM degree from a recognised university either through full time or distance learning with minimum 50% marks at graduation.

Yes, you can get admission in KCET for B.Tech.
Eligibility criteria: You should have passed 10+2 level qualifying examination with Physics and Mathematics as main subjects and English as a language subject and studied Chemistry/ Bio-Technology/ Computer Science/ Biology as an elective subject in class XII.
You need to get minimum aggregate of 45% (GEN Category) and minimum 40% (Other Categories) in class 12.

Go through the link given below for top M.Tech automobile engineering colleges in Andhra Pradesh, check out their reviews for further details:
https://www.shiksha.com/engineering/colleges/m-tech-automobile-engineering-colleges-andhra-pradesh

Please refer to the link provided below for a list of colleges which offer courses in various sciences in Andhra Pradesh. Important details like eligibility, admission criteria, last application dates, fee structures, etc. are mentioned at the link mentioned below.
https://www.shiksha.com/science/colleges/m-sc-colleges-andhra-pradesh

You may either get in Amity or Acharya Nagarjuna University. The eligibility to get in is 12th pass.

Please refer to the link provided below for a list of colleges which offer M.Sc in environmental science in Andhra Pradesh. Use the filters to navigate to a college of your choice.
https://www.shiksha.com/science/colleges/m-sc-environmental-sciences-colleges-andhra-pradesh