Whether you should do online coaching or offline coaching should depend on the fact that how much time you are willing to give to the coaching and how far are the coaching centres in your vicinity. If you wish to give more time and the coaching centres are near you then you should go for regular ones otherwise you can opt for online coaching. Hope this helps.

Hello dear student, 

Greetings! ! 

If you like self study then you can go for online preparation,  it would be best for you.