The Nyāya Sūtras is an ancient Indian Sanskrit text composed by Akṣapāda Gautama, also known as Aksapāda, and is the foundational text of the pracina or Old Nyaya school of Hindu philosophy.
The text contains 5 parts divided further into chapter and contains over 500 sutras.
Babaji is reading from Nyāya-darśanam with the Vātsyāyana's bhāsya, which includes the Hindi commentary by Dhundhiraj Shastri.
The modern marketing research says that packaging and product are one. This is surely true in case of human beings. Hypocrisy, the packaging, sells better than the bare truth. Sukadev Gosvami was free from packaging and thus misunderstood by people, who were making fun of him.