The science-of-thought *(Nyāya)* has always been an integral part of the four constituents *(anuyoga)* – *prathamānuyoga, karuņānuyoga, caraņānuyoga,* and *dravyānuyoga* – of the Jaina Scripture. D. ) churned the nectar of the science-of-thought *(Nyāya)* from the ocean of the words of the master-composers like *Ācārya* Samantabhadra and *Bhatta* Akalańka Deva. The valid-knowledge *(pramāņa)* ascertains the true nature of objects while the fallacious-knowledge *(pramāņābhāsa)* does the opposite. *Parīksāmukha Sūtra* characterizes, as per the earlier authoritative expositions and in brief, both these *(pramāņa* and *pramāņābhāsa)* for the benefit of the uninitiated learners. It is an essential canonical text that every knowledge-seeking householder and ascetic must try to master.