Neha Raj seeks sleep on the night train from Delhi to Dehradun. Its not the soundest slumber, but shes grown accustomed to the sway of the rails. Neha teaches at Navdanyas organic farm in the foothills of the Himalayas. Her teaching props are the hundreds of varieties of rice, wheat, millets, lentils, vegetables, oilseeds, and spices grown at the farm. Since the green revolutionwhen private seed companies entered Indian agricultureIndias agrobiodiversity has shrunk dramatically. Neha teaches farmers how to preserve it.