Nagraja 555" is a pesticide brand used in agriculture to control pests and diseases in crops. It contains Chlorpyrifos, a broad-spectrum insecticide effective against a range of pests. However, Chlorpyrifos is highly toxic, and its use has been restricted or banned in many countries due to safety concerns. It is important to follow instructions and take precautions when using pesticides and consider alternative methods for pest control.