Hyderabad: Periyapatna Venkatasubbaiah Satheesh, who founded the Zaheerabad-based Deccan Development Society and was known as the 'Millet Man' for his groundbreaking work in environmentally sustainable agricultural food systems, passed away on Sunday morning while being treated in a private hospital after a protracted illness. As one of the most prominent civil society activists in the country, Satheesh, who founded the …