The main aims of the present investigations were to sort out the comparative efficacy of granular and emulsifiable concentrated insecticides against maize stem borer Chilo partellus (Swinhoe). The trials were laid out in a Randomized Complete Block Design (RCBD) and there were seven treatments including check having three repeats, each.The effectiveness of insecticides was compared in terms of maize stem borer infestation in different insecticidal treatments and control which was considered to be its indirect reflection. Among all the tested insecticides Furadan, proved the most effective and Karate the least effective insecticide.