Retail small and mediumsized enterprises (SMEs) have builtacase for deferment of implementation of the goods and services tax (GST) to September 1 on account of complexities involved to comply with the new setup.Agroup of retail businesses, including Max Standard Retail, SRS Group and VMart Retail, has written a letter to Finance Minister and Chairman of the GST Council Arun Jaitley to extend the GST deadline, which has now been set at July 1. The retailers sought extension, along with clarification for the industry, to absorb the change, the representation made to the finance minister said.Earlier, traders´ association, the Confederation of All India Traders, also pitched delaying the roll-out of the GST regime to September 1, as small businesses are not yet ready for it. Business Standard New Delhi, 02nd May 2017