Civil Servant (IAS/PCS)

Bajiram and Ravi is the best.

Unfortunately, most people are lacking in minimum values, thus keeping the country in continued misery. So, I say that you can benefit the country greatly, if you are just honest.

1 year is the training period.

All the IAS officers have the same salary. It doesn't depend on which cadre they are working in. IAS is a central government job.

The whole power of district rests in the hands of district collector.

The whole power of district rests in the hands of district collector.

Civil services exams are really tough. To crack these exams, you have to understand the pattern and type of questions asked every year.
Also, as you have done BE, your reasoning and quantitative aptitude techniques are required to be polished.
For this you might need to join some coaching or online test preparation course.
For GK, you need to focus on current affair and newspaper reading.