Engineering

B.Tech will be the best option. From B.Tech, your graduation will be completed and you can also able to give GATE. JE job is also good but it is difficult to quantify because there is very less vacancy nowadays in the government sector.

For civil engineering, there is no placement in 90% colleges only 3/4 students are placed only.

It's a tough task. It's almost impossible to get a seat in NIT and that too CS branch.
Good luck.

Well, in India, it has to be IITs. If you didn't make it to IITs, there are some good NITs and GFTIs as well.

It's actually unpredictable. Go through the cut-offs of last few years to get an idea but it won't be the same this time. However, it may be close to those values.

Well, there are many of them in the southern part of India. But, you need to write the state level tests to go through admission procedure. Otherwise, if you are financially good, management seats are always open.

As per my idea, the fee structure of aeronautical engineering is slightly higher than all other branches. On an average, it costs around 8-10 Lacs for 4 years.

Just by getting qualifying marks, it isn't possible to get into NITs. Your score should be greater than 180 to have a go at NIT. But since you are of ST category, it might fall down till 100 but not less than that.

Ludwig Maximilian University is the best one. It has good prospects when it comes to computer science field and has a good hold in Germany.

Yes, there are still chances of getting adding in ISUT if you scored good marks in board exams and you can apply for the 3rd round counselling which will take place in the August 1st week.