Even as the Food Safety and Standards Authority of India (FSSAI) has directed its central licensing arm to issue a show cause notice to Patanjali Ayurved Ltd over complaints about 'alleged misleading advertisement' it has emerged that the US Institute quoted by Yoga guru Baba Ramdev-led FMCG group on mustard oil does not support its contention. Patanjali Ayurved had brought out advertisement in major newspapers saying According to NCBI (US Institute) Hexagon solvent which is a petroleum by-product is carcinogenic in nature. It further said that other than Kacchi Ghani process most of the other edible refined oils and mustard