gajānanaṁ bhūtagaṇādisevitaṁ
kapitthajambūphalacārubhakṣaṇam |
umāsutaṁ śokavināśakārakaṁ
namāmi vighneśvarapādapaṅkajam ||
I was under the impression it was a popular mantra. but on searching GRETIL and Muktabodha, and the internet, I was only able to find it in Kulālaśāstra (IFP transcript T0452) and a mention in an online website that its part of the rituals on Holika Dahan.