INTRODUCTIONMan has suffered from the activities of mosquito since time immemorial and it is ranked as man’s most important insect pest. Mosquitoes belonging to the genera Anopheles, Culex and Aedes are the vectors for the pathogens of different diseases such as malaria, filariasis, Japanese encephalitis, dengue and dengue haemorrhagic fever, epidemic polyarthritis, yellow fever and chikungunya [1-3]. These diseases devastate Indian economy every year [4]. Tropical areas are more vulnerable to parasitic diseases and the risk of contracting arthropod-borne illnesses is increased due to climate change and intensifying globalization [5]. Worldwide, mosquitoes transmit diseases to more than 700 million people annually and are responsible for 1 death for every 17 people currently alive [6]. Malaria results from an infection by a protozoan carried by Anopheles stephensi. About 2.5 billion people are at risk, more than 500 million people become seriously ill with malaria every year, and more than one million people die due to malaria [7]. Culex quinquefasciatus is responsible for the transmission of lymphatic Filariasis caused by Wuchereria bancrofti. Lymphatic filariasis, disease affecting the arms, legs and genitals, is much prevalent in India. Lymphatic filariasis infects 80 million people annually of which 30 million cases exist in chronic infection. There are 45 million cases of Lymphatic filariasis in India alone