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In the existing study, an effort has been made to evaluate and determine residues of three pesticides in vegetables, belonging to Organophosphate group, which was extensively used in the Southern part of Punjab province in Pakistan. Triazophos, profenofos and chlorpyrifos Organophosphorus insecticides, were commonly used on the summer vegetables like: egg plant, Pumpkins and okra cultivated in study area. Vegetables were analyzed for pesticide residues using multiresidue analysis by High-Performance Liquid Chromatography (HPLC) equipped with UV detector. It was observed that 33.0% of the samples were contaminated with any of the above three pesticides. The results showed that 8% of the samples tested contained residues higher than the MRLs. Based on observations made in these studies; it is proposed that more extensive monitoring investigations covering all vegetables from different agro-climatic regions of the state be carried out to find the exact position of pesticide residues.