Competition is quite high these days. Student are trying their best .It is becoming tougher and tougher everyday to get into a good college. So, you need to become better. To get a seat in a government college you need to secure atleast above 540 . But if you want a good seat in a good college you will have to score much better. You will have to aim higher. 620+ is the marks needed to get into the best medical colleges of the country. 

So, I will ask you to work hard and wish you all the luck.