In which companies can I apply for summer internship while doing B.E in mechanical engineering in Bangalore? How should I apply for same?

In which companies can I apply for summer internship while doing B.E in Mechanical Engineering in Bangalore? How should I proceed?

I have finished my 4th sem in B.E mechanical engineering (in bangalore coll of engineering & technology). In which companies can i apply for internship while doing my mechanical engineering in bangalore. how should i proceed ?
pls help me.

s.sriram