Very interesting application that you show us friend @alokkumar121, I did not know Byju's and from what you say it is a very good distance learning tool, so necessary for the times we live today.

In particular, in my teaching activity I use telegrams and the classroom as work tools, here in Venezuela we have quite a few technological limitations and that influences a lot in terms of pedagogical development.

I am one of those who think that any tool that facilitates the reach of information to the student is essential for their learning process, but the values, attitudes and life examples are only transmitted in person, face to face, hence the systems Educational institutions must ensure a balance between the two.

Greetings and have a beautiful day !!