UPSC

Start preparing from first year of graduation. Also, you can do subject wise analysis of question asked in UPSC. History, Geography, Political Science, Economics and GS question are most prevalent in UPSC pre paper. You can take any three from History, Geography, Economics and Political Science. Also, B.A. LL.B. Is a good course if planning for UPSC. As law question are also prevalent from GS and political Science portion. Appearing for UPSC law ) is also a good option. As you study the subjects which are most asked in UPSC CSE. Best wishes.

You can pursue online/ distance courses like- Master of Business Law from NLU
- PG Diploma in various law courses
- LL.B. (academic ) from Anamlai University
Questions related to law are asked in UPSC pre and main. You can opt for law as optional paper in UPSC.

UPSC IPS can be given after graduation. After 12th UPSC/ other exam you can appear are -
- UPSC NDA
- SSC CHSL
- SSC MS
- Railway exams
- other Indian Army exams
One good option could be to crack SSC exams and then prepare for UPSC IPS along with job.

Hello Hariram Bhatra, it's very nice to hear from you that you intend to appear for civil services examination that is being conducted by UPSC and you want to clear it in the first attempt. There are plenty of agencies who offer their services to coach students how to crack this examination. You can seek the help of any one of them. Else you can also study on your own if you are confident of clearing without any external help. You must choose that subject as optional in which you are very confident. Best wishes to you.