Rose, tulsi...: If chai isn't purely from tea plant, you can't call it tea: FSSAI KOLKATA: Are you hooked on ‘herbal tea’? Do you unwind sipping on ‘flower tea’?Your favourite hot beverages have suddenly lost their ‘tea’ tag, though their appeal is set to endure.The Food Safety and Standards Authority of India (FSSAI) issued a directive on Dec 24 asking all food business operators and...