Mendonca was married to Myra Mendonca (d. 2014), who was the first mayor of the Mira-Bhayandar Municipal Corporation. The couple had two children: a son, Venture Mendonca, who is a Municipal Corporator in Mira-Bhayandar Municipal Corporation, and a daughter, Caitlin Pereira, who served as mayor of Mira-Bhayandar Municipal Corporation from 2012 to 2017.
