Wrong.
Hardly any person uses more than 20 MB an hour which too is a really really exagerated figure, it is more like <10 MB an hour because you aren't changing pages without a break. Even if you browse continuously for 5 hours a day (even if you do 10, half the time you are just idle anyway), it is like 100 MB a day or 3 GB a month. This too is a really far fetched figure.
Browsing/Emails/Chat etc Max 3 GB per month
Small downloads like software updates etc Max to max 1-5 GB per month
Music 1-5 GB per month
Youtube 1-10 GB per month
Total all inclusive without downloads is like 6-23 GB per month depending on what you do. And these are really exagerated figures. Most people won't cross even 5 GB leave alone 10 GB, 20+ GB is more like imagination.
If you only download WHAT YOU REALLY NEED TO DO:
That will be like 20-30 games a year, so like 200 GB / YEAR or around < 20 GB a month
Miscellaneous a few GB
So a 50 GB plan is perfect if you don't misuse the internet (which most of us do, btw
)
But 8-10 out of 12 months, if you use the internet properly, you can enjoy 4 Mbps with a 50 GB FUP.
And ya, countries like USA are at least 2-3 times as good as this stuff or sometimes even 5+ times.
But, 3G in USA is like $2-10 / MB whereas Airtel 3G is like at most 35p per MB on the Rs.750 pm plan!
NOTE
I am not saying that internet in India is up to the mark.
IMO IDEALLY IT SHOULD BE:
4-8 Mbps / no FUP / Rs.999 all inc INSTEAD OF 4 Mbps / 50 GB / Rs.1799 + taxes
But in the next 5(take or give 1-2 years max) I guess we should reach a similar stage as we want.
Just let 4G come, things just may change