Joining the chorus against value-added tax (VAT), transporters demanded that diesel be brought under a uniform tax rate of 4 per cent across the country. They have also asked for removal of all checkpoints they stop at while transporting goods.The transporters' list of grievances included government reneging on its commitment to exempt them from the burden of collecting service tax.This can lead to further disruption of business, with traders across the country already on a strike, protesting against VAT.