Although not yet launched commercially, Reliance Jio started its 4G mobile services all over India during 2015 December. But it was only for their employees. Now (since May 2016), you can get a 4G sim when you buy a LYF phone; and anybody can enjoy the high speed data for free for a duration of 3 months.
Giving below some speed test results done from a small palakkad village, where the previously achieved highest data speed was 4mbps using 3G services .
The above given test results are done during the last week ( June 2016 ) . Although the speeds are not always at the 60s or 70s, we always get a speed of about 25-35 mbps.