UPSC

Please refer to the link provided below for a list of entrance exams conducted across the country for admission into BBA exams, and details regarding these exams. https://www.shiksha.com/bba/exams-pc-30
If you are interested in becoming an IAS officer then, you have to pursue your higher studies in Bachelor's degree courses like B.E. / B.Tech B.A. BCA B.Sc. B.A. , etc. , after completion of your 12th standard with Science stream from a Government recognised board. It is not mandatory to choose any particular subject in Graduation to become an IAS officer. You can opt for any stream of your interest in Graduation and after completion of your Graduation from a Government recognised university, you can apply for IAS examination. If needed, check on different papers for which you will have to appear in the UPSC examinations for selection to IAS and select an UG course which has those same subjects. Regards.

Hi Shariq!
The UPSC CSE Prelims exam consists of two papers namely, the general studies papers I and II. GS II is also known as the CSAT and in this paper you have to score a minimum of 33%. In GS paper I, you need to score the minimum cut-off marks to qualify for the IAS Mains exam. In order to do well in the exam, you should follow these small tips that will help you attain your goals:
1. You must understand the importance of mock tests. You should make sure to practice at least 15 mock tests if you want to get a real hang of the exam. 1 or 2 tests just won't do the trick.
2. Look at previous years IAS question papers to comprehend how the actual exam is.
3. Revising at least thrice whatever you have read is essential for retention and assimilation. So minimize the sources, else it will be chaos at the end.
4. Read newspapers like The Hindu and The Indian Express.
5. Go through the NCERT books for reading about History, Geography and Civics.
6. Indian Economy by Ramesh Singh can be used to get an idea about various economic concepts and terms. Also, keeping up with the current affairs is important so keep reading the Budget, Economic Survey, Yojana, Kurukshetra etc.
7. For technology, Science, culture and environment studies, you can refer to current affairs books like Pratiyogita Darpan Magazine, Concise General Knowledge Manual- J K Chopra, Manorama yearbook.
8. Last but not the least, you must know the significance of time management and having a proper time table is of utmost importance.