Indianization of Southeast Asia in the context of "Pallava alphabet"

Medieval India was a long period of post-classical history in the Indian subcontinent between the ancient and modern periods. It is usually regarded as running approximately from the break-up of the Gupta Empire in the 6th century to the start of the early modern period in 1526 with the start of the Mughal Empire, although some historians regard it as both starting and finishing later than these points. The medieval period is itself subdivided into the early medieval and late medieval eras.

In the early medieval period, there were more than 40 different states on the Indian subcontinent, which hosted a variety of cultures, languages, writing systems, and religions. At the beginning of the time period, Buddhism was predominant throughout the area, with the Pala Empire on the Indo Gangetic Plain sponsoring the Buddhist faith's institutions. One such institution was the Buddhist Nalanda mahavihara in modern-day Bihar, a centre of scholarship which brought a divided South Asia onto the global intellectual stage. Another accomplishment was the invention of Chaturanga, which later was exported to Europe and became chess.In Southern India, the Tamil Hindu Cholas gained prominence with an overseas empire that controlled parts of modern-day Sri Lanka, Malaysia, and Indonesia as overseas territories, and helped spread Hinduism and Buddhism into the historic cultural area of Southeast Asia. In this time period, neighbouring regions such as Afghanistan, Tibet, and Southeast Asia were under South Asian influence.

Khmer architecture (Khmer: ស្ថាបត្យកម្មខ្មែរ), also known as Angkorian architecture (Khmer: ស្ថាបត្យកម្មសម័យអង្គរ), is the architecture produced by the Khmer during the Angkor period of the Khmer Empire from approximately the later half of the 8th century CE to the first half of the 15th century CE.

The architecture of the Indian rock-cut temples, particularly in sculpture, had an influence on Southeast Asia and was widely adopted into the Indianised architecture of Cambodian (Khmer), Annamese and Javanese temples (of the Greater India). Evolved from Indian influences, Khmer architecture became clearly distinct from that of the Indian sub-continent as it developed its own special characteristics, some of which were created independently and others of which were incorporated from neighboring cultural traditions, resulting in a new artistic style in Asian architecture unique to the Angkorian tradition. The development of Khmer architecture as a distinct style is particularly evident in artistic depictions of divine and royal figures with facial features representative of the local Khmer population, including rounder faces, broader brows, and other physical characteristics. In any study of Angkorian architecture, the emphasis is necessarily on religious architecture, since all the remaining Angkorian buildings are religious in nature. During the period of Angkor, only temples and other religious buildings were constructed of stone.

Tambralinga or Ho-ling was an Indianised Malay kingdom located on the Malay Peninsula (in modern-day Southern Thailand), existing at least from the 2nd to 13th centuries CE. It possibly was under the influence of Srivijaya for some time, but later became independent from it or were generally allies rather than conqueror and vassal. The name had been forgotten until scholars recognized Tambralinga as Nakhon Si Thammarat (Nagara Sri Dharmaraja). In Sanskrit and Prakrit, tām(b)ra means "copper", "copper-coloured" or "red" and linga means "symbol" or "creation", typically representing the divine energy of Shiva.

Tambralinga first sent an embassy to China under the Song dynasty in 1001. In the 12th century it may or may not have been under the suzerainty of the Burmese Pagan Kingdom and a kingdom of Sri Lanka. At its height in the mid-13th century, under King Chandrabhanu, Tambralinga was independent, regrouping and consolidating its power and even invading Sri Lanka. By the end of the 13th century, Tambralinga was recorded in Siamese history as Nakhon Si Thammarat, under the suzerainty of the Tai Sukhothai Kingdom.

Southeast Asia was in the Indian sphere of cultural influence from 290 BCE to the 15th century CE, when Hindu-Buddhist influences were incorporated into local political systems. Kingdoms in the southeast coast of the Indian subcontinent had established trade, cultural and political relations with Southeast Asian kingdoms in Burma, Bhutan, Thailand, the Sunda Islands, Malay Peninsula, Philippines, Cambodia, Laos, and Champa. This led to the Indianisation and Sanskritisation of Southeast Asia within the Indosphere, Southeast Asian polities were the Indianised Hindu-Buddhist Mandala (polities, city states and confederacies).

Indian culture itself arose from various distinct cultures and peoples, also including Austroasiatic lingusitic influence onto early Indians. However some scholars, such as Professor Przyluski, Jules Bloch, and Lévi, concluded that not only linguistic but there are also some cultural, and even political Austroasiatic influence on early Indian culture and traditions. India is seen as a melting pot of western, eastern and indigenous traditions. This distinctly Indian cultural system was later adopted and assimilated into the indigenous social construct and statehood of Southeast Asian regional polity, which rulers gained power and stability, transforming small chieftains into regional powers.