[Al Skierkiewicz]

Rachika,
The things I am most concerned about would be the speed controllers and the RC. A little water won't kill a motor but it might wash a little of the lubricant out of the bearings. The RC has a pretty tight cover but it is not waterproof. Much of the interior on both the RC and the speed contollers has a coating on the components so they should be good if you are sure they are dry. (The speed controllers are wide open to water and metal shavings. A good shake on a speed controller, (outside of the robot, please) should reveal any residual moisture in side. A hair dryer applied to the opening for several minutes ought to take care of what might be left inside. Dry all electrical connections and let the robot sit for a few hours and you should have very few if any problems.
Sensors, pots, microswitches etc., might not fair as well but use the same technique, shake, inspect and use the dryer. Servos would give the least amount of problems, I think. The wire entry has a gasket and the case is pretty tight so I don't think you should have any problems there.