I have did the maths..
500k courses sold in 5 years
Average cost 2000 inr
Total revenue generated in 5 years 100 Cr
Subscription model
189/Monthly considering 500k monthly users. That is 9.45Cr/monthly and 112Cr in an year
In 5 years 500 cr +
Teaching was never so fruitful but now it certainly IS..
I am with you Ankur!