Recurrence pattern: every year on November 27.

Great Heroes Day, also known as Maaveerar Naal, is observed by Sri Lankan Tamils on November 27 each year to honor the memory of militants who fought for the Liberation Tigers of Tamil Eelam (LTTE) during the Sri Lankan Civil War. This day commemorates the sacrifices of those who died in combat, particularly marking the death of Lt. Shankar, the first LTTE cadre killed in 1982. The observance includes lighting oil lamps and holding public gatherings, reflecting the community's reverence for the fallen militants. The flame lily (Gloriosa superba), which blooms in November, serves as the symbol of Great Heroes Day. The LTTE, formed in response to ethnic tensions between the Sinhalese majority and Tamil minority, led to a civil war lasting from 1983 to 2009, with the organization currently listed as a terrorist group by over 30 countries. Despite this, Sri Lankan Tamils regard the LTTE fighters as heroes, and their memory is a significant aspect of Tamil identity and culture.