Northern Karnataka region specially the Gulbarga District is known for pigeon pea cultivation. One of the major threat to this crop cultivation is a pod borer insect helicoverpa armigera. Presently formers are using pesticides of high cost to control the pest this has led to the heavy loss to the formers inn cultivating the crop. It has been reported that some indole derivatives possess insecticidal property. The present work involves insecticidal property of hydrazones which are obtained as intermediates in the process of Fischer Indole synthesis. These freshly prepared hydrazones were tested against H. armigera using contact poisoning and stomach poisoning method and results are presented in the form of table