Medical and nursing students should help the patients. All, especially people with rare blood groups like A-, should donate their blood. Pure water supply and sanitation should be maintained.
It is also important to preserve fuel. So, please do not drive unless very important. Media persons should be disciplined enough to not interrupt doctors and alike. Government officers should resume their normal work, or rather join the rescue teams.
In addition, NGOs like NSET that can train and counsel people on the face of disasters should train volunteers. It is also important to check theft, price hike and ulterior fund-raising. Spread the words!