Siddheswari Devi was a legendary Hindustani singer from Varanasi, India, known as Maa. Her music embodied the Banaras Gharana style, which focuses on conveying deep emotions and feelings through musical notes and voice modulations. A stalwart figure in thumri, Siddheshwari's repertoire also encompassed khayals, dhrupads, dadras, tappas, kajris, chaitis, horis, and bhajans.
She is considered one of the greatest Thumri singers of the 20th century and was called the 'Thumri Queen' by her contemporaries like Kesarbai Kerkar.