A moral dilemma gripped Professor Gupta when he was invited by the Bangladeshi government to help restructure their agricultural sector in 1985. He noticed how the marginalized farmers were being paid poorly for their otherwise unmatched knowledge. The gross injustice of this constant imbalance led Professor Gupta to found what would turn into a resounding social and ethical movement - the Honey Bee Network - bringing together and elevating thousands of grassroots innovators. For over two decades, Professor Gupta has travelled through rural lands unearthing innovations by the ranks - from the famed Miti Cool refrigerator to the footbridge of Megalaya. He insists that to fight the largest and most persistent problems of the world we must eschew expensive research labs and instead, looks towards ordinary folk. Innovation - that often flung around the world - is stripped to its core in this book. Grassroots Innovation is an important treatise from a social crusader of our time.