en.wikipedia.org/wiki/Traditional_games_of_India

This sentence conflates the Mahabharata's dice game with pachisi/chaupar.

A peer-reviewed study on the early history of chaupar/pachisi notes that the popular belief that the game goes back to the Mahabharata is a misconception, and that the available evidence for the cruciform game only goes back much later. In the article's detailed discussion of the Mahabharata dicing episode, the author explains that the text describes play with dice/nuts, but does not mention a board or pawns, and concludes: "The lack of any textual basis for the claim that Yudhiṣṭhira and Śakuni played caupaṛ has been pointed out by game scholars many times over."

So while the Mahabharata famously contains a gambling episode, that is not hard evidence that the game was pachisi, nor that pachisi was described there under the name "Pasha."

This wording wrongly narrows vallam kali to a single venue.

Official Kerala Tourism describes vallamkali broadly as Kerala's boat-race tradition and says there are more than 100 boat races in Kerala, adding that the most famous one is the Nehru Trophy Boat Race in Alappuzha, where people arrive at Punnamada Lake to watch it. In other words, Punnamada Lake is the site of a famous particular vallam kali, not the definition of vallam kali itself.

A separate official Kerala Tourism page on the Champakkulam Boat Race says that event is "known locally as Vallam Kali", confirming that vallam kali refers to boat races in multiple locations, not just Punnamada Lake.