The most successful, hence most prominent amongst these grammarians was Panini. His grammar, surpassing all others in tightness and precision, became… - Panini

The current language Pāṇini describes is very close in structure to the late Vedic found in certain Brāhmaṇa texts. As noted earlier, scholars have recognized other varieties of Sanskrit. Epic Sanskrit is so called because it is represented principally in the two epics, Mahābhārata (“Great Epic of the Bhārata Dynasty”) and Rāmāyaṇa (“Romance of Rāma”). In the latter the term saṃskṛta ‘adorned, cultivated, purified (by grammar)’ is encountered, possibly for the first time with reference to the language. The date of composition for the core of early Epic Sanskrit is considered to be in the centuries just preceding the Common Era.

Panini, the ancient grammarian (probably belonged to 5th century or sixth century BC) mentions a character called Vasudeva son of Vasudeva, and also mentions Kaurava and Arjuna which testifies to Vasudeva Krishna, Arjuna and Kauravas being contemporaries. Megasthenes (350-290 BC), a Greek ethnographer and an ambassador of Seleucus I to the court of Chandragupta Maurya mentioned about Herakles in his famous work Indica. Many scholars have suggested that the deity identified as Herakles was Krishna

Pingala was the brother of Panini.