Civil Servant (IAS/PCS)

For NDA entry, it is 162.5 cm with leg length of 99 cm and for graduate entries, it is 167 cm with leg length of 99 cm.

Apply for NDA exam, which is conducted twice a year. Get through exam, SSB interview, PABT, Medical, and merit, then you get call letter for NDA. Spend three years there as air Force cadet and then spend another 1 and half year at AFA, you are ready to go now. You can also apply for graduate entries such as AFCAT CDSE, NCC.
All the best.

For joining Indian Navy you can apply for various entries such as:
NDA (after class 12)
UES
10+2 B.Tech entry (through JEE Mains score)
NCC Special Entry
SSC entry

Right now, all you have to do is to know the basics of IAS examination, about it's pattern and syllabus. Watch as many preparation tutorial video you can watch and frame you mind for the upcoming journey of preparation. Later on, you know what are your + point and weak point going to be then just focus on it and do not forget to keep yourself updated about surrounding though newspaper and TV.

Do whatever feels easy for you in 12th. If you are sure about your goal, then you should go for humanities. It is easier to study and the course will help your basic knowledge for preparations later.

What is within your reach and what you truly want? Remember that the hard part of IAS is interview, would you be able to clear that? And, also since you have studied MBBS, you will have to study GS and History for IAS from beginning. On the other hand, PG course will be based on what you studied in MBBS.

Hi Junaid,
For preparation of IAS and UPSC, I would prefer you study subjects such as History, Economics, and Geography which will make you competent for the exam.
Good luck.

Your becoming of an IAS is not depended on our comment on your question it depends on your efforts, hardwork and your intelligence. So prepare well for IAS exam.

Yes, it's degree is valid, as it is a national University.