2010 SIDDAVATTAM, Dayananda (b. 1957) PhD,FNA, Professor, Department of Animal Sciences, School of Life Sciences, University of Hyderabad, Hyderabad – 500046; Res. 345, Doyens Township, Lingampally, Hyderabad – 500019; Tel: (040) 66794578(O), 23013233(R); Fax: 23010120; Email: ; ; Sp. Soil Sciences/Agricultural Toxicology.