G P Rating course is designed in two segments. First one is Pre-Sea and the second is On-board or On-Sea training. The trainees get trained to work in both the departments of vessels i.e. Deck and Engine, therefore it is called General Purpose. Ratings assist the Deck and Engine room Officers and Engineers for Deck and Engine operation as such play vital role at vessels. It is on the Seamen to decide whether he wants to be a part of deck or engine after successful completion of Pre-Sea training. They are certified watch keeper in Deck or Engine room. Ratings have opportunity to become Deck Officer or Engine Officer after completion of 36 months of Sea time and qualifying the required examination conducted by appropriate authorities.