Bharti Airtel's credit rating has been boosted to 'BBB+' by S&P Global Ratings, reflecting robust earnings growth anticipated in India and Africa. The agency foresees expanding profits driven by escalating data consumption and market improvements. Expectations are for a 3-4% subscriber increase and 5-7% ARPU growth in India, while Airtel's African operations are projected to see even stronger customer and revenue expansion over the next two years.