Why do we need food security?

Why do we need food security?
Or
Why is there a need for food security in India?
Or
"Food security is essential in India". Justify the statement.

Following points state need of food security in India
(i) The poorest section of the society might be food insecure most of the times while persons above the poverty line might also be food insecure during natural calamities.
(ii) During natural calamities like drought, earthquake, flood, tsunami, etc total production of food grains decreases. It creates a shortage of food and the prices go up. At the high prices, some people can not afford to buy food. Thus, it can be concluded that food security is essential in India.