The company, however, did not share the number of 4G customers it acquired but said it has a overall customer base of 125 million in these reported circles.
"Idea Cellular accomplished the fastest roll-out of 4G LTE services in 100 days in the country. Currently available in over 575 towns across its 10 leading circles, Idea also becomes the first 4G broadband service provider in 250 towns out of these 575," Idea said in a statement.
Idea said it has 6.1 million 4G devices, nearly 6 percent of its subscriber base in these 10 telecom service areas, registered on its network.
The company said it has deployed over 14,000 sites to provide 4G service across 10 circles.
"With this, Idea Cellular is now servicing over 125 million users with its world-class 4G LTE services," the statements said.
Idea said it also continues its 3G journey and has built a foundation of 22,000 3G cell sites since the last 2 years, adding 28,500 new sites to create an infrastructure of over 50,000 sites.
Idea said it is the fastest growing telecom operator with an overall revenue market share of 18.9 percent as of Q3FY16 report of Trai.