The company has made changes in most of the recharges and vouchers for 2G and 3G services.
According to industry sources, the company also plans to increase the data tariffs in five-six more circles in the coming days.
When asked to comment on the matter, the company did not reply.
According to information taken from customer care of Idea Cellular, the company has increased 3G data tariffs by over 18 per cent and 2G tariffs by 11 per cent.
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The company has also reduced validity of various packs. For instance, customers will now get a validity of 7 days with a recharge of Rs 247 for 1 GB, while earlier it used to cost Rs 249 with 28 days validity.
Idea is the first telecom operator, which has increased data tariffs after the March spectrum auctions.
In a bid to improve profitability, telecos have been cutting back on discounts and freebies. Last year also, firms including Bharti Airtel, Vodafone and Idea had increased data as well as call tariffs.
After the March spectrum auction, industry associations had said there would be hike in tariffs as operators have to pay about Rs 1,09,874 crore to the government.