Terrible delusion) is a 2024 Indian Tamil-language crime thriller film written and directed by Rahul Kabali.

[1] The film stars JD, Guru Somasundaram, Harish Uthaman, John Vijay in lead roles.

The cinematography was done by Nandha and Praveen V and the editing was handled by Akhil Prakash.

"[5] Manigandan KR of Times Now rated this film 2 stars out of 5 stars and noted "Bayamariya Brammai is a distinctly different film that leaves you exhausted by the time it ends.

"[6] Narayani M of Cinema Express rated this film 2 stars out of 5 stars and noted "The final impression that Bayamariya Brammai provides, is as ambiguous as the title itself—like a delusion that never ceases to provide meaning to life or the events of the everyday world but a delusion nonetheless.