CBSE 12th

Hi, with 122/200 marks in NATA 2019 exams and 82% score in your class 12th, you have chances to secure admission in Jawaharlal Nehru Tech. University, Hyderabad.

There is a slight chance to get admission as only few colleges accept 6 band and since your academic scores is also not very good so you need a strong LOR (Letter of Recommendation) and SOP (Statement of Purpose) to make your application strong.

I would suggest you to personally Visit the college and ask them may be your score is not enough to get the admission and if there is no possibilities to get this college, then go for other college which will accept your score.

After HSC, you can pursue the Foundation programme (Stage 1) of Company Secretary ship (Four Papers) in a Year and Fees for the course is INR 4,500/-.

Yes, If you want to go with CS either you can take B.Sc in CS or BCA. But, you shouldn't stop with UG, since it's only 3 year degree in order to get placed with high packages you need to continue with Masters like MCA.

Yes, Integrated MCA still has demand pursued in top Institutes can make you land in good industries with good or high packages.

Hello,
Kindly, use the Shiksha's college predictor. It is the best method to predict a college on the basis of rank obtained in JEE Mains. You would be able to understand the scenario better.

Depends on universities to universities. Some might need only good students whose academic is very strong and some might require a student to be very good in other activities like social service, etc. Firstly, give IELTS exam then lookout the colleges who can accept your scores and accordingly apply for those colleges.