Police Officer exams

You can refer to the link given below-
https://www.shiksha.com/careers/border-security-force-224

Students from any stream /subjects in class 12/UG/PG can become police officers after clearing recruitment exams.

Army recruitment drives often takes place across the country. They usually release advertisement regarding these recruitment drives. Look out for them.

If you want to prepare for civil service then don't get yourself into B.Tech try some course like B.A, B.Sc. Take some literature course so that you can focus on civil service.

Hi Shrinath,
Your decision to become a police officer is really good. But generally, police inspectors are expected to have a graduation degree or any equivalent degree. All the Best.

Mostly, general knowledge. You don't need to have expertise knowledge in any field if you are a avid reader of papers. Though basic knowledge of law is required if you want high marks.

Hi Sushant!
To become a Deputy Superintendent of Police (DSP), you need to take the State Police service exam. These are taken at the state level by respective State Public Service Commissions. The candidates who clear the State PSC exam are made DSP. DSP officers generally become SP of police in around 8-10 years. A candidate starting as a DSP can expect to rise to a level of Inspector General Police in a state.