Vembar is a village panchayat in Thoothukudi district in the Indian state of Tamil Nadu. Situated along the East Coast Road at the north end of the district, Vembar has two panchayats - Vembar South and Vembar North. Vembar is located near the district's border with Ramanathapuram District, about 13 km south of Sayalkudi and around 7 km from Melmandai. Madurai is 97 km north-west while Tirunelveli is 85 km west. Other nearby towns are Vilathikulam (22 km) and Tuticorin (45 km).Vembar (historically known as Vembaru) is a coastal village panchayat in the Thoothukudi district of the Indian state of Tamil Nadu. It is located along the Gulf of Mannar on the southeastern coast of India. The village has historically been associated with fishing, pearl fisheries, maritime trade, and early Christian missionary activity on the Pearl Fishery Coast. Panchalankurichi, Ettayapuram, Gulf of Mannar Marine Biosphere Reserve, Kurusadai Islands, Pamban Bridge and Dhanushkodi are close to Vembar and the nearest airport is at Tuticorin. Ramanathapuram Railway Station, Kovilpatti and Tuticorin Railway Station serve Vembar.

Etymology The name Vembaru is derived from the Tamil words vembu (வேம்பு), meaning neem tree (Azadirachta indica), and āṟu (ஆறு), meaning river or stream. The name originally referred to a watercourse flowing through an area where neem trees were abundant. The coastal settlement of Vembar is situated near the delta of Vembaru river, and the surrounding region was historically noted for its abundance of neem trees. Place names derived from local vegetation—particularly ecologically and culturally significant species such as the neem—are common in Tamil Nadu.

Geography Vembar is located at the East Coast Road near the northern boundary of Thoothukudi district. It lies approximately 45 km north of Thoothukudi, 22 km from Vilathikulam, and about 97 km southeast of Madurai.

The village is situated along the Gulf of Mannar, part of the Gulf of Mannar Marine Biosphere Reserve, known for its marine biodiversity. Historically, the Vembaru river or seasonal stream flowed through the region, supporting settlement and economic activity.

Economy Fishing is the primary occupation of the residents of Vembar. The village is traditionally inhabited by the Paravar community, a historic maritime group known for sea-faring occupations such as fishing, pearl diving, navigation, boatbuilding, and maritime trade. Vembar forms part of the Pearl Fishery Coast along the Gulf of Mannar, a region historically associated with pearl fisheries and maritime commerce. In addition to fishing, palmyra palm cultivation and coconut farming have traditionally contributed to the local economy, with palm-based products such as palm sugar forming part of the livelihood system in coastal Tamil Nadu.

Pearl fisheries and Pandyan dynasty: Vembar was historically part of the Pearl Fishery Coast along the Gulf of Mannar, one of the most important pearl-producing regions in the world. Pearl fishing in this region dates back to ancient times and was a major source of revenue for the Pandyan dynasty. Ancient Tamil works such as ''Pattinappaalai'' and ''Madurai Kanchi'' describe the wealth generated by these fisheries and their role in international trade. The Paravar community played a central role in pearl diving and maritime activities along the coast. During the Later Pandyan period, sathirams (choultries) were established to support maritime trade; one such structure, the Sundarar Tholar Sathiram, in Vembar, is traditionally attributed to a Pandyan ruler and is associated with the pearl fishery trade network of the region.

Portuguese period and the Seven Ports: In the early 16th century, Portuguese traders and missionaries established control over the Pearl Fishery Coast. Portuguese records referred to a network of coastal ports known locally as “Yēḻu Kadal Thurai” (ஏழு கடல் துறை) — meaning “Seven Sea Ports” These ports included: Tuticorin (Thoothukudi), Punnaikayal, Manapad, Vaipar, Vembar, Veerapandianpatnam and Kulasekarapatnam ports. These ports served as centers of pearl fisheries, maritime trade, taxation, and missionary activity.

Christian missionary activity: Christianity was introduced to Vembar during the 16th century through the efforts of Jesuit missionaries. In 1542, Francis Xavier visited the Pearl Fishery Coast, where he organized and strengthened Christian communities among the Paravar population. The Portuguese Jesuit missionary Henrique Henriques (1520–1600), who arrived in India in 1546, played a significant role in consolidating Christian institutions in coastal settlements, including Vembar. Henriques became one of the first European missionaries to attain scholarly proficiency in the Tamil language. He authored several religious works in Tamil and supervised the printing of Thambiran Vanakkam - Doctrina Christam en Lingua Malauar Tamul- in 1578, one of the earliest printed books in Tamil. Henriques’ efforts contributed significantly to the early development of Tamil printing, and Tamil became one of the first non-European languages to be printed using movable type. For this reason, he is sometimes referred to as the “Father of the Tamil press.” He is also regarded as one of the earliest European scholars of the Tamil language.