The Sanskrit commentary text Upaskara was composed in the 15th century CE. It is said that the text Upaskara might had been composed before 1462 AD by the Indian philosopher Sankara Mishra. The expressions of Navya Nyaya scholars could be traced in the commentary Upaskara, so it said that without the adequateknowledge of NavyaNyaya Shastra, it is very difficult to understand the text Upaskara.