Complex sentence: Her father, who passed away in 2013, was a Bohri Muslim while her mother, who is a Hindu by birth, is a practicing Buddhist and a Chitrapur Saraswat from Mangalore who is half-Telugu.
Split into simpler sentences: Her father, who passed away in 2013, was a Bohri Muslim while her mother, who is a Hindu by birth, is a practicing Buddhist. She is a Chitrapur Saraswat from Mangalore who is half-Telugu.