Today, People are using text and color based password for authentication schema in accessing process of any system. There are number of methods used for different authentication purpose like textual password and graphical password. But these password are affected by eves dropping, dictionary attack, social engineering, bio-metrics system and shoulder surfing. To solve these types of problem, text can be combined with image and color to generate different session password for authentication. In this paper, we proposed RPET (Rollback Process Encryption Technique) for password authentication schema (PAS) in which, three graphical, color and image methods are used for generating different password schema which will help to roll back the original data.