Agro-centric National Commodity & Derivatives Exchange (NCDEX) plans to launch options trading in four new contracts namely, guargum, soybean, refined soy oil and chana within two weeks. Currently generating a daily average turnover of around Rs 40 million in guarseed options, its only agro contract currently, the exchange has already received approval from the markets regulator the Securities and Exchange Board of India (Sebi) to launch options trading in these additional commodities.