Lalitgiri
Lalitagiri () (also known as Nalitagiri) is a major Buddhist complex in the Indian state of Odisha. The complex is home to stupas, 'esoteric' Buddha images, and monasteries (viharas), which is the oldest site in the region. Significant finds at this complex include Buddha's relics. Tantric Buddhism was practiced at this site. Together with the Ratnagiri and Udayagiri sites a short distance away, Lalitagiri is part of the "Diamond Triangle". It used to be thought that one or all of these were the large Pushpagiri Vihara known from ancient records, but this has now convincingly located at a different site. Location

Lalitagiri is a major center of Buddhism hemmed between the Parabhadi and Landa sandstone hills in the standalone Assian hill range. It is situated in the Mahanga Tahsil in Cuttack district. Bhubaneswar, the state capital of Odisha, is  from the site, while Cuttack, the former state capital is  away; Udaigiri is  from Lalitagiri and Ratnagiri is  away. Cuttack is well connected by road, rail and air services with the rest of the country. History 

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. Archaeological finds

The excavations carried out by the ASI at Lalitgiri have unearthed remnants of a large stupa on the hill. Within the stupa, two rare stone caskets were found with relics of Buddha; this was the first such find in Eastern India. The stone caskets, like Chinese Puzzle boxes, made of Khondalite stone, revealed three other boxes within them, made of steatite, silver and gold respectively; the gold casket, which is the last one, contained a relic or dhatu in the form of a small piece of bone. Another interesting find is that of an east facing apsidal chaityagriha, built of bricks,  in size with -thick walls. This edifice, the first such Buddhist structure found in Odisha, contains a circular stupa at its center. Also found were a series of Kushana Brahmi inscriptions made on shells with cuts on moonstone at the periphery of the edifice. Another find is a piece of a pillar railing with a lens-shaped decoration with the theme of a half lotus medallion. From these finds it is inferred that such structures belonged from the early Christian era to 6th–7th century period. Also found were remnants of four monasteries. The first and the largest monastery, facing east, a two storied structure measuring , has at its center a  square open space; it is dated to 10th–11th century AD. Adjoining the monastery at the rear end is a rainwater cistern built of bricks. The second monastery, in the northern extremity of the hill, is believed to have been built when Buddhism was losing its importance in Lalitgiri. The third monastery faces south-east and has dimensions of  with a central open space of  and represents the end stages of apsidal chaitya. The fourth monastery, , in size, has many large sized Buddha heads deified in the sanctum sanctorum. A terracotta monastic seal with the inscription "Sri Chandraditya Vihara Samagra Arya Vikshu Sanghasa" is dated to the 9th–10th century AD. The antiquities unearthed include a plethora of images of Buddha in different meditative forms from the Mahayana Buddhism period. The finds also include a gold pendant, silver jewellery, stone tablets with imprints of Ganesha and Mahisasurmardini, a seal matrix-cum-pendant, and a small image of Avalokiteśvara. Images of Tara in the form of Tara Kurukulla or Kurukulla Tara have been reported in Lalitgiri and also from Udayagiri and Ratnagiri, including an emanation form of Amitabha seated in a lalitasana posture. Images of Hariti have also been found in Lalitgiri and also in Udayagiri and Ratnagiri. These images portray the goddess in a seated position, breast feeding a child or with the child seated in its lap. Hariti was once a child abductor, but Buddha persuaded her to become the protector of children. Also found are potsherds with inscriptions dated from the post Mauryan period to 8th–9th century AD, which indicate that Buddhists belonging to the Hinayana and Mahayana sects lived here. The last period of occupation is identified as belonging to Vajrayana, the Tantric period of Buddhism during the reign of Bhauma-Kara dynasty (8th–10th century AD). Museum
Initially, a makeshift enclosure housed the sculptures unearthed from the site for display. Now the permanent museum established houses sculptures of Buddha from the Mahayana period. The huge stone statues, with inscriptions on some of them, are of Buddha, Boddhisattva, Tara, Jambhala and many others. The statues of Buddha, portrayed in a standing position and attired with a drape adorned from shoulder level to the knee, is reflective of the Gandhara and Mathura schools of sculpture. The relic caskets recovered from the stone stupa on the hill are also on display. 