S&P Global Ratings has upgraded Bharti Airtel's long-term issuer credit rating to BBB from BBB-. The upgrade reflects the company's strong earnings momentum and robust cash flow, which are expected to significantly reduce its debt levels over the next 12-24 months. S&P also reaffirmed a positive outlook, anticipating improved financial flexibility due to expanding earnings amidst rational industry competition. The agency forecasts substantial improvements in Bharti Airtel's Funds from Operations (FFO) to debt ratio.