Who is Technical Guruji? Why is he so famous?

Technical guruji is the top most technical youtuber in India but as he is growing his channel can make him world top most technical youtuber. Now he is on 3rd(>9.1m)position by subscribers followed by amith bhadana(>10m) and bb ki vines(>10m).

My first Experience when I was making presentation in my college class(Called Li-Fi Technology). So I searched on YouTube to have some practical knowledge About presentations b/c somewhat we have to Show in front of our genius professors who sit with that knowledge other do not. might they think according to my experience with college teachers.

So I found and watched (subscribed…subscribers about 100k)

After watching first video got addicted to watch every single video he uploads and I still watch 8 videos out of 10

And now he has another channel named :-Gaurav Chaudhary about 1.3m subscribers where he uploads blogging videos Link.. https://www.youtube.com/channel/...

By the way this is my first Answer on Quora..!!