Iyengar Total population about 600,000 Regions with significant populations Tamil Nadu , Karnataka , Andhra Pradesh , Maharashtra , Delhi , USA Languages Kannada , Tamil Religions Vishishtadvaita Hinduism Related ethnic groups Madhva , Iyer Iyengar (also Ayyangar, Aiyangar, Ayengar, Iengar ) is the name of a community of Kannada/Tamil Brahmins