ancient Tamilakam into five Sangam landscape divisions: kurinji, mullai, paalai, marutham and neithal. Each landscape is designated with different gods. Neithal is described as a seashore landscape occupied by fishermen and seatraders, with the god of sea and rain, Varunan or Kadalōn. "Varuna" means water which denotes the ocean in the Tamil language. Festivals Cheti Chand The Cheti Chand festival in the Hindu month of Chaitra marks the arrival of spring and harvest, but in Sindhi Hindu community, it also marks the mythical birth of Uderolal in the year 1007. Uderolal morphed into a warrior and old man who preached and reprimanded Mirkhshah that Muslims and Hindus deserve the same religious freedoms. He, as Jhulelal, became the saviour of the Sindhi Hindus, who according to this legend, celebrate the new year as Uderolal's birthday. Chaliya saheb Chalio or Chaliho, also called Chaliho Sahib, is a forty-day-long festival celebrated by Sindhi Hindus to express their gratitude to Jhulelal for saving them from their impending conversion to Islam. The festival is observed every year in the months of July to August; dates vary according to Hindu calendar. It is a thanksgiving celebration in honor of Varuna Deva for listening to their prayers. Narali Poornima Nārali Poornima is a ceremonial day observed by Hindu fishing communities in Maharashtra, India particularly around Mumbai and the Konkan coast. It is held on the full-moon day of the Hindu month of Shravan which falls around July or August. On this day offerings such as rice, flowers and coconuts as offered to Lord Varuna, the god of ocean and waters. Beyond Hinduism and India Sri Lankan Tamils (Karaiyar caste) Karaiyar is a Sri Lankan Tamil caste found mainly on the northern and eastern coastal areas of Sri Lanka, and globally among the Tamil diaspora. They are traditionally a seafaring community that is engaged in fishing, shipment and seaborne trade. They fish mostly in deep seas, and employ gillnet and seine fishing methods. The Karaiyars were the major maritime traders and boat owners who among other things, traded with pearls, chanks, tobacco, and shipped goods overseas to countries such as India, Myanmar and Indonesia. The community known for their maritime history, are also reputed as a warrior caste who contributed as army and navy soldiers of Tamil kings. They were noted as the army generals and navy captains of the Aryacakravarti dynasty. The Karaiyars emerged in the 1980s