Music was composed by Ilaiyaraaja, with lyrics by Vaali.[1][2] The song "Janani Janani" is set in Kalyani raga,[3][4] "Isai Arasi" is set in Sallabam, also known as Surya,[5][6] and the title track is set in Vasantha Sri.[7] Ilaiyaraaja mentioned that he "was running out of time" while composing the tune for "Janani Janani". He explained that he was "under hectic pressure from the film producer, who had planned to perform the ‘puja’ for the film the next day with the song". The initial tune that Ilaiyaraaja composed did not suit the character Adi Shankara. He said with a chance to have a glimpse of the portrait of Shankara, he was inspired to compose the tune which was similar to Bhaja Govindam.[8] "Janani Janani" was initially to be sung by K. J. Yesudas, but Ilaiyaraaja sang the album version due to Yesudas' other commitments; his version was also selected to be used as the film version.[9]
Thaai Mookaambikai was released on 9 July 1982.[10] Thiraignani of Kalki felt the audience who expected to watch the history of goddess Mookambika and the stories of their devotees will feel disappointed panning certain subplots. He however praised Jagadeesan's dialogues and Karthik's performance and concluded the film's director K. Shankar is responsible for the crime of not seeing completion in Darshan.[11]