A friend of mine who is a Chitpavan Brahmin is doing research into Iyers who follow Satyashada Sutra. This sutra outside of Tamil Nadu is unique to Chitpavan Brahmins. Iyers that follow Satyashada Sutra have a unique gotra called Mathala which is not found anywhere in India. If anyone has information about the Brahmins who follow Satyashada Sutra or Mathala Gotra it would be useful. Pravara especially would be helpful.