Kingdom of Kotte
The Mukkuvar are found in Northern Western Province and Eastern Province of Sri Lanka. Mukkuvar tribes migrated from Malabar Coast in Kerala to cities in Puttalam and Jaffna in the 12th century. They established a local polity in Puttalam, Mannar, and Jaffna. However, they and the Sonakar were defeated in a three-month siege by the Karaiyar chieftains, sponsored by the Kingdom of Kotte in the 15th century. This event is celebrated in a Sinhalese palm leaf manuscript called the Mukkara Hatana ("The Mukkuvar War"). The Jaffna chronicle, "Yalpana Vaipava Malai", mentions the exile of Mukkuvars from Jaffna Kingdom to Batticaloa during the 15th Century after the invasion of Jaffna by Sampumal Kumarayya.