Prices of aviation turbine fuel (ATF) have been hiked been hiked by 5 per cent to Rs 1, 23,039.71 per kl in Delhi, as per state-backed oil marketing companies (OMCs). ATF costs Rs 1, 21,847.11 per kl in Mumbai, Rs 1, 27,854.60 per kl in Kolkata and Rs 1, 27,286.13 per kl in Chennai.