(Telecompaper) Singapore operator Singtel saw its revenue increase by 2 percent year-on-year to SGD 4.34 billion in the fiscal fourth quarter ended 31 March. Revenue growth was mainly boosted by its consumer business and growing digital businesses. Pre-tax profits for the regional associates declined 20 percent to SGD 389 million due to Airtel's results, which were affected by competitive pressures, and the associates' higher depreciation, spectrum amortisation and network costs from the expansion of their 4G networks. Net profit, which included exceptional gains from Airtel, was stable at SGD 773 million.