lower fuel prices have helped domestic carriers to trim their combined losses by an estimated 30 per cent at $1.21-1.27 billion in fiscal 2015, while budget carrier IndiGo reported an estimated record $150-175 million profit during the period, according to an industry report. The Indian airlines reported these losses notwithstanding an estimated combined net profit of $41-67 million reported by the low-cost carriers, Sydney-based aviation think-tank ‘Centre for Asia Pacific Aviation’ (CAPA) has said in its 2016 aviation outlook. According to CAPA, the combined estimated losses of the three full-service carriers -- Air India, Jet Airways and newly-launched Vistara -- stood at $1.28-1.31 billion during the period, with the Government-owned Air India alone accounting for $900-920 million.