By Swami Harshananda
Sometimes transliterated as: Sutudri, Zutudri, shutudri
Śutudri literally means 'that which flows very fast’.
During post-Vedic period the name got changed to Satadru. According to the Mahābhārata, this river was originally known as Haimavatī. When the king Kalmāṣapāda, who had become a demon due to curse and ate up all the sons of the sage Vasiṣṭha, Vasiṣṭha out of intense sorrow fell into this river to commit suicide. However, being afraid of killing such a great sage, the river broke into a hundred streams and carried him safely to the bank. Since then it came to be known as Satadru.
- The Concise Encyclopedia of Hinduism, Swami Harshananda, Ram Krishna Math, Bangalore