With the market being filled with aggressive offerings since the launch of Reliance Jio last year, Idea Cellular said it will be giving 10GB of 4G data free to its existing and new customers for the first three months.
The company will be competing against Bharti Airtel, Vodafone, Reliance Communications and Jio, which offer 4G in one of the biggest markets for telcos in the country.
"The company is upgrading most of its 2G network to high speed 4G LTE (Long Term Evolution) services and allow Mumbaikars to experience world-class mobile broadband services," the company's head of Mumbai circle, Pamesh Gupta, said.
With this, the Aditya Birla group company, which is set to be merged with British telecom giant and larger rival Vodafone's India operations, has rolled out 4G services in all the 20 circles where it has acquired 4G spectrum.
The company invested Rs 7,800 crore in 2016-17 and has committed to invest another Rs 6,000 crore in the ongoing FY18.