"Cheapest 4G-LTE data rates the world has ever seen." India will shortly have more 4G connection that the U.S. has people (317M.) China already does. In a few years, Indians with 4G phones will probably number more than the combined population of Western Europe and the United States. This is a very different Internet.
Mukesh Ambani spent $20B on the network across India. He intends to get 100M users as soon as possible. The other telcos are dropping prices to match or going out of business. India has 12 wireless carriers competing, but many think that will quickly come down to 4 or 5. Telenor is the latest to give up.
Everything is free until December 31. If $7.40 is too much, you can buy one gig for $0.74 on a day pass.