The Bharti Airtel stock was up 9 per cent and hit a fresh all-time high after the company reported a better than expected performance in the March quarter, led by India's wireless segment. The price hikes that came into effect in December resulted in a 14 per cent jump in average revenues per user (ARPU) on a sequential basis. The metric at Rs 154 is the highest in 12 quarters. This helped the company report a 10 per cent uptick in India business and an 8 per cent increase at the consolidated level. India accounts for three-fourths of Bharti’s consolidated