The GST Council, which will meet shortly, is expected to comprehensively review the eight-year-old regime focused on reducing tax on several consumer-focused items in the 12% bracket as well as lowering the burden on items such as air conditioners, which are in the top bracket. Besides, with the compensation cess - money released to states to offset any revenue loss because of switch to GST - due to end in March, a plan on imposing a cess on some of the sin goods, such as tobacco, is also expected to be finalised to ensure that states don't have to bear a significant revenue hit. Concern that they will be losing out on revenue has been among the principal factors why states oppose tax cuts, including those which they consider to be desirable.