Abdul Khader Nadakattin, a grassroots agricultural innovator from Karnataka's Dharwad, received the Padma Shri award from President Ram Nath Kovind on Monday. Nadakattin is known for over 40 innovations for farmers including a tamarind seed separator, a water-heating boiler and a seed-cum-fertiliser drill. In 2015, he had received Lifetime Achievement Award from then-President Pranab Mukherjee.