Lyrics of 'Brahmastra Part One: Shiva' song 'Theethiriyaai' are written by Madhan Karky. 'Brahmastra Part One: Shiva' also stars Mouni Roy and Nagarjuna Akkineni in pivotal roles.

Shiva, who plays the lead in the film along with Vasundhra, has written and sung a Hindi song, Rosa Heh, for the film. The song was not released in the audio CD to maintain the suspense element.

Lord Shiva Is The Favourite Amongst The Music Creators, ... The music video of the song, which fuses Hindi and Pahari lyrics, ... Shiva Delivers 8th Most Profitable Tamil Film Of 2025! Box Office.