NEW DELHI: Reliance Jio on Sunday said that it is introducing its "All-in-one" or AIO plans, which will be priced up to 40% than previous plans, but will offer up to 300% more benefits. These new plans will be effective from December 6, 2019.The company, however, hasn't provided more details about its new plans. Jio ’s AIO plans will have fair use policy for calls to other mobile networks. All three carriers combined serve nearly 1 billion customers in India.The announcement from the nation’s largest telecom firm with more than 355 million customers came Sunday evening after Vodafone Idea and Bharti Airtel announced their respective tariff hikes, also by about 40%, which will come into effect from December 3.Jio said that it "determined to strengthen the telecom sector." It added that it will take measures including appropriate increase in tariffs in a manner that does not adversely impact data consumption or growth in digital adoption and sustains investments."While remaining committed to the ultimate interest of the consumer, Jio will take all necessary steps to help sustain the Indian telecommunications industry. Jio will continue to work with the Government on the consultation process for revision of telecom tariffs and looks forward to participation from all other stakeholders," the Mukesh Ambani-led telco said in a statement.Jio's rivals Vodafone Idea and Bharti Airtel have also announced new prepaid plans on Sunday with a tariff hike of up to 42%.Airtel has increased tariff in the range of 50 paise per day to Rs 2.85 per day. Its popular bundled plans offering unlimited calling and data that were earlier priced at Rs 249 (28 days validity) and Rs 448 (82 days validity) will now cost Rs 298 and Rs 598 (84 days validity) respectively. The telco has also increased minimum recharge from Rs 35 to Rs 49 for a month.Vodafone Idea, too, has announced new plans for prepaid product and services with 2 days, 28 days, 84 days, 365 days validity. It said that local, STD and national roaming voice calls from Vodafone to Vodafone and Vodafone to Idea and vice versa are considered as on-net, while rest calls are off-net.