You may think self study can achieve your goal, it my be. But in my opinion you should take some guidance from reputed coachings like Allen, Aakash. If you are not interested in coaching and can do better by your own then you can buy their DLP(distance learning program) for better learning. For more daily solve more than 2 mock tests, watch news. So that you can easily achieve your goal.
ALL THE BEST FOR YOUR EXAMS.