The provided text is a Wikipedia list detailing notable individuals of Tamil origin from Sri Lanka, categorized by their professions and achievements. The list includes academics, activists, artists, athletes, business people, diplomats, historical figures, journalists, lawyers, judges, militants, and political leaders. It covers a wide range of contributions to Sri Lankan society and beyond, highlighting individuals who have made significant impacts in their respective fields. The extract emphasizes the transnational nature of the Tamil diaspora, with many individuals found globally.

However, the name Rajiv Parti does not appear within this extensive list. The focus of the extract is solely on individuals identified as notable Tamils from Sri Lanka, and without any mention of Rajiv Parti, it is impossible to extract information about his background, contributions, or any notable works from this specific source. Therefore, any biographical details or connection to esoteric or other fields cannot be determined from the given text.