@ugsrao ji,
Whatsapp group were formed earlier and all were dismantled by @"Sharat Sir-VK Inventor" ji a year ago.
It was really hard to secure data and maintain many users and groups at the same time.
This Litarian Forum is made by Sir after a lots of research and hardwork.
This is the best platform for group learning and discussion for any numbers of users at the same time.
the best part of this Forum is Search option. You can search by using KEYWORDS.
there is no need to repeat questions by users which is already answered and it is also convinent for Team VK and Teachers to repeat answers again & again.
you can also read discussion as Category wise and is easier to use.