THIRUVANANTHAPURAM: The main Opposition UDF on Monday accused the state government of adopting a step-motherly attitude towards Karipur International Airport in Kozhikode. Raising the issue in the Assembly, the Congress-led alliance demanded that in line with the decision for the newly-opened Kannur International Airport (KIAL), Aviation Turbine Fuel(ATF) tax at Karipur should be slashed to one per cent.