Hi Sadaf,
You can prepare for super 30 through online lectures and materials. There is no requirement of taking extra coaching from a tutor if you have interest in studies. If you are curious for studying then you can easily prepare for Super 30. You have to work harder that way but you will get more clear in your doubts as you are doing every preparation by yourself. So, If you definitely want to study and give maximum time to it then do prepare by yourself but if you can't handle high pressure and work then you can take coaching from a teacher.
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