Reliance JIO net profit largely flat q-o-q: Reliance JIO (RJIO Digital Services business) reported EBITDA margin of 37.8% (EBITDA of Rs. 2,694 crore) and PAT of Rs. 510 crore in Q4FY2018, which was largely flat on a sequential basis. Average revenue per user (ARPU) declined by 11% q-o-q to Rs. 137.1, but subscriber addition continued to remain robust...