Undaravar Baisuni Ganapati Aarti

The mouse is Lord Ganesha's mount and this Aarti is one of those rendered when welcoming the Lord during the Ganesh Chaturthi festival. "Undaravar Baisuni" means seated on the mouse. 

Lord Ganesha Ghalin Lotangan Marathi bhajan

The devotional song here is rendered while performing an aarti of Lord Ganesha.