As the country grapples with a stronger second Covid wave, states want the Centre to urgently convene a meeting of the Goods and Services Tax (GST) Council, which has not met for the last six months. This comes after the chorus for rate cuts on key medicines and equipment grows louder.Besides, states also want to discuss extension of the compensation period, under the GST regime, beyond July 2022 in the council meeting as uncertain times cast a shadow over state finances.States are demanding exemption of key Covid drugs like Remdesivir, medical grade oxygen used in oxygen cylinders, and related supplements, which currently attract 12 per cent tax.Other decisions piled up include rationalisation of GST rate slabs, correction of inverted duty on certain items and inclusion of petroleum products, among others.The law mandates the council to meet at least once a quarter, but the long gap this time has given rise to apprehensions.