Government & Defence Entrance Exam

For that exam, you must have a valid degree.

If your aim is clear that you have to become a IAS then don't go for engineering as it takes 4 years to complete with too much study load. Whereas B.A will complete in 3 years and you can freely prepare for UPSC exam alongwith the degree.

No, because UPSC CSE needs more time and concentration. With 9 hours of work you can't study with the same energy.

GATE is an exam for further studies in engineering and CAT is for management studies.

There are books available on e commerce platform with previous year solved NDA papers sample.

For that, you have to clear the prelims, Mains and interview conducted by UPSC.

History, geography, political Science, economics are the main subjects for UPSC exam. Then some general mathematics and Science you need to study.

Drishti nowadays is a good choice and Vjirao and Reddy are also good options.

Totally depends on a person. One can track it in one year or 6 months, but because of some reasons, so many didn't so just start working hard and be confident. Best of luck for your future.

There are so many coaching in all over India. We can't say best among all because education nowadays has become a money earning source for everyone. So, everyone's motive is to earn money. They just guide you, the man's work is to be done by you. So be confident wherever you take admission just focus on your studies I am studying hard best of luck for your future.