Lalitgiri Knowledge Guide
The first identification of archaeological antiquities from the Diamond Triangle sites was conducted in 1905 by M.M. Chakravarty, the then Sub Divisional Officer in Jajpur. Later, in 1927 and 1928, R.P. Chanda of the Indian Museum in Kolkata documented the site in the Memoirs of Archaeological Survey of India (ASI). In 1937, the site was officially declared a protected monument by the central government. In 1977, some excavations were done at the site by the Utkal University. Detailed excavations by the Bhubaneswar Circle of the Archaeological Survey of India were conducted between 1985 and 1991. From these investigations, it has been inferred that Lalitgiri, one of the earliest Buddhist sites in Orissa, maintained a continuous cultural sequence starting from the post Mauryan period (322–185 BC) till 13th century AD. It is also inferred that this site maintained a continuous of presence of Buddhism, unbroken, from 3rd century BC to 10th century AD.In 1985, the Archaeological Survey of India (ASI) started excavation at Lalitgiri to locate Pushpagiri, an important Buddhist site mentioned in the writings of the Chinese traveler Xuanzang. The excavation led to several important archaeological discoveries, but none of these confirmed the identification of Lalitgiri with Pushpagiri. Later, excavations at Langudi Hill suggested that Pushpagiri was located there.