To suggest, one or two year drops are enough for a student to know his/her performance in NEET. If with these drop years, you score close to 550-560, it is better to apply for MBBS abroad and save the years. Remember, the competition to secure medical seat in India is very high. You will get ample of options to choose from countries like China, Kazakhstan, Russia, Nepal and Bangladesh that can offer you MBBS at a very reasonable cost. The degrees for these countries are globally recognized. Most of the students preparing for NEET are in the same dilemma. But not all can get a seat here. So be proactive with your homework and apply for MBBS abroad if you see no chance of getting medical seat in the country.