Similar in appearance to Buddhist monks, monks from the International Society for Krishna Consciousness (ISKCON), or Hare Krishnas as they are popularly known, are the best known Vaishnava monks outside India. They are a common sight in many places around the world. Their appearance—simple saffron dhoti, shaved head with sikha, Tulasi neckbeads and tilaka markings—and social customs (sadhana) date back many thousands of years to the Vedic era with its varnasrama society. This social scheme includes both monastic and lay stages meant for various persons in various stages of life as per their characteristics (guna) and work (karma).