Question: Who wrote the national anthem of the country where Idikundu is located?

full_context: Document 1: S. Mahinda: S. Mahinda arrived in Ceylon (now Sri Lanka) at a young age and was ordained as a Buddhist monk. Having learned the Sinhala language, he became a poet, creating several literary works inspiring patriotism among the Sinhalese and urging them to fight for their freedom during Sri Lankan Independence movement.. He is now considered a national hero of Sri Lanka and one among the greatest of Sinhalese poetry figures of all time.
Document 2: Sare Jahan se Accha: ``Sare Jahan se Accha ''(Urdu: سارے جہاں سے اچھا ‎ ‎; Sāre Jahāṉ se Acchā), formally known as`` Tarānah - i - Hindi'' (Urdu: ترانۂ ہندی ‎ ‎; ``Anthem of the People of India ''), is an Urdu language patriotic song written for children by poet Muhammad Iqbal in the ghazal style of Urdu poetry. The poem was published in the weekly journal Ittehad on 16 August 1904. Publicly recited by Iqbal the following year at Government College, Lahore, British India (now in Pakistan) it quickly became an anthem of opposition to the British Raj. The song, an ode to Hindustan -- the land comprising present - day Bangladesh, India and Pakistan, was later published in 1924 in the Urdu book Bang - i - Dara.
Document 3: Idikundu: Idikundu (Idi-kun-du), translates in Tamil to 'Thunder Well', is a natural Water well in Navaly, Jaffna District, Sri Lanka. Legend says it was created by a lightning strike in the early 20th Century, some speculate it might be an asteroid that struck.
Document 4: Navatkuly: Navatkuly (pronounced Naavat-kuly)(Tamil: நாவற்குழி) is a town in Jaffna District, Northern Sri Lanka. It is located about 6.5 km from Jaffna.
Document 5: Estonia: The superior god of Oeselians as described by Henry of Latvia was called Tharapita. According to the legend in the chronicle Tharapita was born on a forested mountain in Virumaa (Latin: Vironia), mainland Estonia from where he flew to Oesel, Saaremaa The name Taarapita has been interpreted as "Taara, help!"/"Thor, help!" (Taara a(v)ita in Estonian) or "Taara keeper"/"Thor keeper" (Taara pidaja) Taara is associated with the Scandinavian god Thor. The story of Tharapita's or Taara's flight from Vironia to Saaremaa has been associated with a major meteor disaster estimated to have happened in 660 ± 85 BC that formed Kaali crater in Saaremaa.
Document 6: Lakena: Lake na is an islet of Nanumea atoll, Tuvalu. Nanumean traditions describe Lakena as being formed when sand spilled from the baskets of two women, Pai and Vau, when they were forced off Nanumea by Tefolaha, the Tongan warrior who became the ancestor of the people of Nanumea.
Document 7: Mapu a Vaea: The Mapu a Vaea or "Whistle of the Noble" are natural blowholes on the island of Tongatapu in the village of Houma in the Kingdom of Tonga. When waves crash into the reef, natural channels in the volcanic rock allow water to forcefully blow through and create a plume-like effect. It is one of the highlights of the tours around the island of Tongatapu. "Vaea" is the name of the Honorable Vaea Family of nearby Houma.
Document 8: Kitulgala: Kitulgala is a small town in the west of Sri Lanka. It is in the wet zone rain forest, which gets two monsoons each year, and is one of the wettest places in the country. Nevertheless, it comes alive in the first three months of the year, especially in February, the driest month. The Academy Award-winning "The Bridge on the River Kwai" was filmed on the Kelani River near Kitulgala, although nothing remains now except the concrete foundations for the bridge (and, supposedly, the submerged train cars that plunged into the river in the climactic scene). Kitulgala is also a base for white-water rafting, which starts a few kilometres upstream and also popular as a location for adventure based training programs.
Document 9: Sri Lanka Matha: There are differing accounts as to the origin of the Sri Lanka Matha. The most widely held view is that Sri Lankan composer Ananda Samarakoon wrote the music and lyrics to the song inspired / influenced by Bengali poet Rabindranath Tagore. A minority suggest that Tagore wrote the anthem in full. Some have suggested that Tagore wrote the music whilst Samarakoon wrote the lyrics. Samarakoon had been a pupil of Tagore at Visva - Bharati University, Santiniketan. After returning to Ceylon Samarakoon taught music at Mahinda College, Galle. The song, which was then known as Namo Namo Mata, was first sung by students at Mahinda College. After it was sung by the choir from Musaeus College, Colombo at a public event it became hugely popular in Ceylon and was widely played on radio.
Document 10: Nalloorkonam: Nalloorkonam is a small village that belongs to Arumanai panchayat of Kanyakumari district in Tamil Nadu, India. The village has a number of rubber plantations in addition to ponds, springs and a variety of flora and fauna. Farming is the primary occupation in the village. Rainfall occurs throughout the year and ground water is abundant. The village has a temple named "Ayanimoottu thamburan".
Document 11: Sare Jahan se Accha: Sare Jahan se Accha (Urdu: سارے جہاں سے اچھا ‎; Sāre Jahāṉ se Acchā), formally known as Tarānah - i - Hindi (Urdu: ترانۂ ہندی ‎; Anthem of the People of India), is an Urdu language patriotic song written for children by poet Muhammad Iqbal in the ghazal style of Urdu poetry. The poem was published in the weekly journal Ittehad on 16 August 1904. Publicly recited by Iqbal the following year at Government College, Lahore, British India (now in Pakistan) it quickly became an anthem of opposition to the British Raj. The song, an ode to Hindustan -- the land comprising present - day Bangladesh, India and Pakistan, was later published in 1924 in the Urdu book Bang - i - Dara.
Document 12: Vande Mataram: It played a vital role in the Indian independence movement, first sung in a political context by Rabindranath Tagore at the 1896 session of the Indian National Congress. It became a popular marching song for political activism and Indian freedom movement in 1905. Spiritual Indian nationalist and philosopher Sri Aurobindo referred it as ``National Anthem of Bengal ''. The song and the novel containing it was banned by the British government, but workers and general public defied the ban, many went to colonial prisons repeatedly for singing it, and the ban was overturned by the Indians after they gained independence from the colonial rule.
Document 13: Chiemgau impact hypothesis: Chiemgau impact hypothesis is an obsolete scientific theory that claimed the Tüttensee lake in southern Bavaria, Germany, to be the result of a Holocene meteorite impact. This claim has been refuted by geological research and the finding of a soil horizon of undisturbed peat and sedimentation since the end of the last glaciation period. The lake is in fact one of many kettles under the foothills of the Bavarian alps.
Document 14: Muttukumara Kavirajar: Muttukumara Kavirajar (1780–1851), the Ceylon / Sri Lankan Tamil poet, was one of the earliest Hindus to protest via published native literature the conversion attempts by the various Protestant missionaries within the Jaffna peninsula in Sri Lanka. He wrote the Jnanakkummi or "Kummi Song on Wisdom" and Yesumataparikaram or "Abolition of the Jesus Doctrine". These poem were initially published in 1850s by Arumuga Navalar
Document 15: Sri Lanka Matha: There are differing accounts as to the origin of the Sri Lanka Matha. The most widely held view is that Sri Lankan composer Ananda Samarakoon wrote the music and lyrics to the song inspired / influenced by Bengali poet Rabindranath Tagore. A minority suggest that Tagore wrote the anthem in full. Some have suggested that Tagore wrote the music whilst Samarakoon wrote the lyrics. Tagore being directly involved in the creation of the song has been denied by some historians like Indian Lipi Ghosh and Sri Lankan Sandagomi Coperahewa. Samarakoon had been a pupil of Tagore at Visva - Bharati University, Santiniketan. After returning to Ceylon Samarakoon taught music at Mahinda College, Galle. The song, which was then known as Namo Namo Mata, was first sung by students at Mahinda College. After it was sung by the choir from Musaeus College, Colombo at a public event it became hugely popular in Ceylon and was widely played on radio.
ground_truth: Ananda Samarakoon
sub_queries: Idikundu >> country Answer: Sri Lanka
who has written the national anthem of Sri Lanka Answer: Ananda Samarakoon