Hi Vwn,

What after graduation is a pressing issue nowadays. especially when you have done a science course. But here are some suggestions.

1. You can teach, temperoraly. Until you figure out, if you want to pursue in the same field or change, you can earn through teaching. It is one of the easy methods. 

2. Study further. You can go for M.Sc in physics. Try doing it abroad. 'Where' you study holds a great value in the science stream.

3. Entrepreunership. If you are a person with a creative mind and business skills, you can always go for a start-up. A little wise investment and courage is all that is needed.

4. MBA. A very common idea among BE graduates nowadays. It gives you confidence later to work.

5. Journals and blogging. Pen down your science ideas into articles and paper works. When you are confident with the ideas, this might help you attract physicists around the world. 

6. Some Indian Research Institutes hire graduate students who are skilled. You can one among them. Government pay is always a delight. 

There are several more ways when given a thought.

All The Best.