India produces around 40 lakh metric tons (mts) of onion annually and is the 2nd largest onion producer in the world , first being China.The export from TAMILNADU is largely of PERAMBALUR region onion. We are the leading Indian Onion Supplier in the world. Rich in antioxidants, thought to prevent cancer, diabetes, and even the common cold, onions are nothing if not a superfood. But thatâ??s not all they are â?? the same properties that make onions a great food to eat also make them great for other things, from healing your skin to cleaning metal.