The SRT-Trait Scale of Personality in Indian Psychology Measures Personality traits according to Trigonal philosophy. The scale consists of 11 traits (dimensions) of personality. They are tamasic knowledge, tamasic habit, rajasic habit, passion, sattvic knowledge, sattvic spirituality, tranquility, maturity, emotional stability, empathy and sattvic habit. It consists of 35 items on a 5 point Likert scale. It is available in Bilingual (Hindi & English) and the age range is 20 to 65 years. Time taken is 20 to 30 minutes. It can be used by psychologists to draw personality proﬁle of their clients. It can also be used for the research purpose such as relation between traits and other psychological and philosophical constructs like karma yoga, human abilities etc.