The National Spot Exchange Ltd (NSEL) on Wednesday launched platinum contracts in demat, which would enable small investors to buy, sell, hold and liquidate the white metal electronically. "For the first time in the history of the Indian commodity markets, financial technologies-promoted NSEL has launched platinum contracts in demat, e-platinum," the exchange said in a statement. With the launch of e-platinum, investors now have an opportunity to put their small investments in this precious metal.