Today the job position is really very tight in our country and for applying and getting a job so many qualified people are there aspiring for it.
You have to take up the things in a patient and arduous way as anything done in haste will not result in fruitful returns.
I think this is the high time to identify your interest and passion area because a person can only work hard when he studies or does work of his liking. So this is a crucial thing to know - what is your interest area?
Once it is known then you can chalk out the further plan in your life by selecting an appropriate line.
As you have shown interest in Astronomy, it will be a good idea to carry out B.Sc. in Astronomy. This course is generally of 3 years duration.
Some of the famous universities for B.Sc. Astronomy or Astrophysics are Osmania University, Hyderabad, Andhra University, Visakhapatnam and Punjabi University, Punjab.
After doing B.Sc. in Astrophysics one can try to enter as a researcher or scientist in many reputed institutes and universities. Some of these institutes are - Bhabha Atomic Research Centre (BARC), Inter-University Centre for Astronomy and Astrophysics (IUCAA), Technology Information, Forecasting and Assessment Council (TIFAC), The Naval Research Laboratory (NRL), National Aeronautics and Space Administration (NASA) and Niels Bohr Institute.
Let us see other options also that is other than Asttonomy.
One thing which is a bit difficult but very rewarding is the competitive exams. You can go for ordinary B.Sc. or B.A. as per your choice and then try for various competitive exams. There are so many exams including state administrative services as well as central services. So if you prepare for one of them it will help you in appearing for others also. For competitive exams you have to prepare slightly different by increasing your GK and practicing logical and analytical analysis along with the optional papers.
If you have interest in law you can think of making it as your career as there is a demand of lawyers in the corporate world. You will have to do the law course after your XII. This course is generally of 4 years duration.
Are you interested in teaching, then you can go for graduation and then B.Ed. after which you can apply for teaching jobs.
So there are various options and one has to select it as per the interest or liking.
Knowledge is power.