But to discover how deeply Buddhism had taken a root in the state, you have to travel to the Buddhist sites scattered across Odisha. About 100 kms from Bhubaneswar, lie what is popularly known as the Diamond Triangle. Consisting of three major ruins, Lalitgiri, Ratnagiri and Udaygiri, span centuries, displaying the evolution of Buddhism in Odisha. Unfortunately, the trio has remained off the popular tourist trail yet the combination of mahaviharas, stupas and sculptural treasures, found here shows they are no less attractive than Sanchi or Sarnath.