India, Oct. 16 -- The country is getting ready for Diwali with lights illuminating homes, markets bustling with record sales and global e-commerce giants accelerating their Indian appeal. Diwali, the celebration of light over darkness and prosperity over hardship, is a celebration rooted in India's agrarian heritage. For centuries, Diwali has marked the time when farmers across much of India rejoice in the completion of harvest, offering gratitude to the land, the rain, the cattle, and the deities that bless them with abundance.

India's cultural calendar has always been synchronised with its agricultural cycles. Diwali coincides with the kharif harvest. Close to 60% of India's food production is done in this season when paddy, pulses, co...