Really this is a duty of parliament to decide policy matters like privatisation and announced in the public is amounted to breach of "propriety of the House and hence its privilege". The earlier Minister Praful Patel privatise all the work in the name of moderanisation of Airport and earned about Rs.60000 Crores through corrupt means is the decision of Parliamnet and he got cabinet approval for this.
Given opportunity BJP themselve will privatize Air India but as we all know they always swing in the direction of winds now they joined with left to oppose;