•It deals with truth/ knowledge which remains unaltered. That is the knowledge which does not change with respect to time.
*The term Perfect Science was coined by Goswami Tulsidas Ji in 1574 [वन्दे विशुद्धविज्ञानौ...(श्रीरामचरितमानस)]. विशुद्धविज्ञानis the knowledge which does not .