He led successful expeditions to the north as attested by his epigraphs found as far as Cuddappah. The Tamil kings and warriors followed an honour code similar to that of Japanese samurai and committed suicide to preserve honor. "The Nature of Tamil Devotion."
 He also defeated two Pandya princes one of whom was Maravarman Sundara Pandya II and briefly made the Pandyas submit to the Chola overlordship. Sri Lankan Ethnic Crisis: Towards a Resolution (2002), p. 76. to Anuradhapura between the 7th and 11th centuries CE in such large numbers that local chiefs and kings trying to establish legitimacy came to rely on them.
While the Marakkayar and Kayalar sects claim descent from the Arab world, the Rowther and Lebbai sects claim descent from the Turkic world. They carried a suicide pill around their neck to escape captivity and torture.  Heroic martyrdom was glorified in ancient Tamil literature. Scripts brought by Tamil traders to Southeast Asia, like the Grantha and Pallava scripts, induced the development of many Southeast Asian scripts such as Khmer, Javanese Kawi script, Baybayin and Thai.
 In addition, there are many temples and devotees of Thirumal, Sivan, Pillaiyar, and the other Hindu deities. Tamil theatre has a long and varied history whose origins can be traced back almost two millennia to dance-theatre forms like Kotukotti and Pandarangam, which are mentioned in an ancient anthology of poems entitled the Kalingathu Parani.  Historically both groups have seen themselves as separate communities, although there has been a greater sense of unity since the 1980s. The forms of martial suicide were known as Avipalli, Thannai, Verttal, Marakkanchi, Vatakkiruttal and Punkilithu Mudiyum Maram.
Over many centuries a fusion of, Pieris, P.E. In van Lohuizen, J.E. During the period of Rajaraja III, the Hoysalas sided with the Cholas and defeated the Kadava chieftain Kopperunjinga and the Pandyas and established a presence in the Tamil country. These wars resulted in a victory for the Cholas and led to the annexation of Gangavadi and Konkan regions.  In Sri Lanka, this early steel-making method employed a unique wind furnace, driven by the monsoon winds, capable of producing high-carbon steel. To carry through; to succeed in; as, you can't come any Tamil literature is dominated by poetry, especially Sangam literature, which is composed of poems composed between 300 BCE and 300 CE. To move hitherward; to draw near; to approach the speaker, or "Peopling of India."
There were trade relationship between the Roman Empire and Pandyan Empire.  Still lower at the local level there were clan chiefs called "kizhar" or "mannar".