Online is like classroom
The Only difference in online class is that you are at your place not in classroom. You can ask query, you can interact with teacher and class mates during the class
You need not to stay or travel to Delhi or any other metro for coaching and it saves a lot of money and time.
You can switch to classroom teaching at any time
There is no extra fee or requirement, you can switch to classroom teaching at any point of time and can switch back to online as many times you want.