You would still need to sterilize your items separately after washing. Pigeon Liquid Cleanser is a detergent, so it should not be used for as a sterilization method.

Please sterilize nursing bottles, nipples, and other parts after washing them sufficiently with the detergent by any of the following methods; sterilization by boiling, microwave steam, or with a chemical solution. In addition, when sterilizing with microwave steam, please use a special sterilization container.