How should you start competetive programming?

The 21st century is full of competition and india is one of such countries who is growing rapidly in technological field as well as in software field... Many core companies now think india as future tech hub... Now the question remains what should you do to become eligible for such tech companies because they have complex programming we must have heared about algorithms this is the spot where you should be perfect you need to develop program solving skills and for this you need to practice a lot so here after a research we have brought a list of websites which will help you be become master at programming so here we go,,,