Onions are considered an indispensable ingredient in most of Indian cooking. Maximum onion production takes place in the state of Maharashtra (4.90 million tons) followed by Karnataka (2.59 million tons), Gujarat (2.65 million tons), and Bihar (1.08 million tons). From these states, onions are transported to Tamilnadu (3.25 million tons), Kerala (2 million tons), and Rajasthan (2.5 million tons). The state of Kerala wants at least 0.75 million tons of onion from Gujarat. The transportation cost of shipping a million tons of onion for 1 km is R 0.002 million. The following table shows the distance between the states in kilometers.