Polytechnic

Yes, you can get it but you can get a good rank in Polytechnic entrance exam. Good luck.

Cut-off for government college is based on category and stream in which you want admission. Compare your choice from previous results.
Good luck.

Dear Shivraj,
There is no short cut of success, hard work is only way to get success. Find a good tutor and make a habit of self practice. Be confident nothing is impossible. Carry on.
Good luck.

Admissions are provided on the basis of category as well as on the basis of stream. What about your category and choice?

No need to worry from Maths, because in Polytechnic level as well as duration ( 1 year) is not so much. Just by doing a little hard work and good counselling, you should continue Polytechnic.

Both regular degree are not counted valid you can do HSC from open board or correspondence.

There are two options after this. Either, you can join Diploma in electrical engineering from a good college which provides you good placement after 3 years or you can continue you vocational course study.

For admission in B.Com it is necessary to have commerce in 12th.

Number of universities provide 3 years MCA degree which includes PGDCA in first year, M.Sc in second year and after successful completion of 3 years MCA degree is provided.

Polytechnic is a Diploma course and after that you will need a degree to pursue MBA and can then prepare for exams like TOEFL and IELTS, which would give you a boost in your resume. You can also apply for many government jobs after pursuing this degree, there are a lot of advertisements that keep coming up in the newspapers. Hope it helps.