NAGPUR, April 14 -- Following the suspension of senior superintendent Nilesh Waghmare by the School Education Department on April 9, Nagpur police on Friday night arrested Ulhas Narad, 54, deputy director of education (Gadchiroli), and Parag Nanaji Pudke, 33, a school principal in connection with the recruitment of '580 bogus teachers', which cost the state exchequer over Rs.100 crore....