मम्मी कसम ★ Mummy Kassam Lyrics in Hindi, is a Hindi Playful song from the soundtrack of the Indian film Coolie No. 1. The song is sung by Ikka Singh, Udit Narayan and Monali Thakur and composed by Tanishk Bagchi, with lyrics of Mummy Kassam is provided by Ikka Singh and Shabbir Ahmed. The film Coolie No. 1 features Varun Dhawan, Paresh Rawal and Sara Ali Khan in a lead role.