In which language the book "Raj Tringni" was written?

In which language the book "Raj Tringni" was written?

Explanation

The book "Rajatarangini" (often transliterated as "Raj Tringni") was written in Sanskrit.

The "Rajatarangini" was written by the Kashmiri historian Kalhana around 1148-1150 CE.

It is a historical chronicle of the kings of Kashmir.