Government & Defence Entrance Exam

Yes, you can go for IAS if you have bachelor's degree in any stream. After B.A.LLB, you can easily go for it.
All the best

Do you really think that joining a coaching institute can help you out to crack the IBPS Exam? What if I say that you can easily crack the IBPS Exam without any coaching institute!
Yes, it is possible. You just need to follow some simple guidelines for it. Check out the study plan that can help you to crack IBPS SO Exam without any coaching here - https://examsmode.blogspot.com/2019/04/how-to-crack-ibps-so-without-coaching.html Click to read. Still, if you want to join any coaching institute in Patna, then check the reviews of the institute and then apply for it.
Best of luck!

Rau's IAS Study Circle
Chanakya IAS Academy
Sathya IAS Academy
Brain Tree India
are some of the top IAS coaching institutes in India.

The details of the exam center will be mentioned on your admit card.

Government exams and the IT certifications you mentioned are different things. Understand the fact that government exams are aptitude based. You will have to prepare Maths, English and reasoning.
If you are preparing for government exams and in your spare time you think of doing these certifications then go for it. But, if you think that your certifications will help you in exams then it's a wrong notion.
Yes, you can go for government exams till the time you are eligible for them.

Once the date for filling the application form crossed, you are not eligible for giving the exam. It is a single window process.

Hello,
If you want to settle in finance, go for BFA+MFA/M.Com or B.Com+MBA-finance/M.Com. And also you could prepare for IAS in parallel with degree and PG.
All the best.