India's telecom operators are projected to see a 12-15% tariff hike in the next few months. Bharti Airtel, Reliance Jio, and Vodafone Idea Limited are expected to report revenue growth in average revenue per user. Reliance Jio is estimated to add 8 million subscribers, while Bharti Airtel expects to gain 3 million customers. Vodafone Idea is projected to add 1 million subscribers in the same period.