Acyuta Piṣāraṭi
Acyuta Piṣāraṭi (also Achyuta Pisharati or Achyutha Pisharadi) (c. 1550 at Thrikkandiyur (aka Kundapura), Tirur, Kerala, India – 7 July 1621 in Kerala) was a Sanskrit grammarian, astrologer, astronomer and mathematician who studied under Jyeṣṭhadeva and was a member of Madhava of Sangamagrama's Kerala school of astronomy and mathematics.