Tata Group is on track to consolidate its four airlines in the New Year. Air India Express has filed the 'second motion' for final hearing in NCLT for merging AIX Connect (erstwhile AirAsia India) into it. The group expects the nod by March and after approval, the two airlines will operate on a single air operator certificate or licence. The timing of the other big merger - Vistara into Air India - will depend on the latter "reaching an appropriate level", AI MD & CEO Campbell Wilson had told TOI last September.