Hello Sajan
You have not mentioned the name of the college, so it is difficult to give any details. Your rank will be  quite high to procure seat in government colleges, but you can try. 
Browse the link given below to check the college you can get on the basis of your marks-
http://www.engineering.careers360.com/jee-main-college-predictor
This is just a prediction based on previous year records. The result might vary.
Hope this helps.