In a first of its kind ruling, the National Anti Profiteering Authority (NAA) Monday ruled that suppliers will be liable to pay penalty for not passing the benefits of GST rate reduction on sale of goods. The NAA gave its ruling in a case against Jaipur-based Sharma Trading Company, wherein it was alleged that the supplier had not reduced the price of 'Vaseline' in line with the reduction of GST rate and thus indulged in profiteering in contravention of Scetion 171 of CGST Act.