Thrissur (Malayalam: [t̪riʃ(ː)uːr] ⓘ), anglicised as Trichur, is one of the 14 districts in the Indian state of Kerala.

A place of great antiquity, Thrissur was also known as Vrishabhadripuram and 'Ten Kailasam' in classical Sanskrit texts.

[3] From ancient times, Thrissur District has played a part in the political history of Kerala.

The early political history of the District is interlinked with that of the Cheras of the Sangam age, who ruled over vast portions of Kerala with their capital at Vanchi.

[3] The District can claim to have played a part in fostering the trade relations between Kerala and the outside world in the ancient and medieval period.

[citation needed] Kodungalloor, which had the distinction of being the "Premium Emporium of India", gave shelter to all the three communities which have contributed to the prosperity of Malabar.

The Thrissur district was ruled by the Perumal dynasty from the 9th to the 12th centuries and following that was part of the Kingdom of Cochin.

With the accession of this ruler the English or modern period in the history of Cochin and of the District began.

Another force in the public life of Trichur and its suburbs was the Namboodithiri community and Menons of royal ancestry.

A large part of the Thrissur Taluk was for long under the domination of the Yogiatiripppads, the ecclesiastical heads of the Vadakkunnathan and Perumanam Devaswoms.

[citation needed] The wave of nationalism and political consciousness which swept through the country since the early decades of this century has its repercussions in the District as well.

Thrissur District has been in the forefront of the country-wide movement for temple entry and abolition of untouchability.

[13] The Catholics (Syro Malabar Church and Latin), Orthodox and Chaldeans are the main sections of the Christian Community in the district.

[19] Muslims live predominantly in the coastal belt of the district, from north Punnayoorkkulam to South Azhikode.

It was built by Malik Deenar, Persian tābiʿūn of the Islamic prophet Muhammad, on the orders of the successor of Cheraman Perumal, the Chera King of modern-day Kerala.

[citation needed]Thrissur is situated in southwestern India (10°31′N 76°13′E / 10.52°N 76.21°E / 10.52; 76.21) and is in the central part of Kerala.

Descending from the heights of the Western Ghats in the east, the land slopes towards the west forming three distinct natural divisions – the highlands, the plains and the sea board.

Karimala Gopuram is the highest point in Trissur situated in the border of Parambikulam Wildlife Sanctuary of Palakkad.

According to myth, Malik Bin Deenar and 20 others who were the followers Muhammad, the founder of Islam, first landed in Kodungallur in Thrissur district when they came to India.

Kodungallur, the capital of the erstwhile Chera Empire, is a region of great archeological and historical significance.

The Unnayi Warrier Smaraka Kalanilayam which is located near the Koodalmanickyam Temple is an important center of Kathakali Learning.

The only centre of traditional Vedic Learning left in Kerala is situated at the heart of Thrissur Town.

Major Malayalam newspapers published in Thrissur include ''Malayala Manorama, Mathrubhumi, Deshabhimani, Deepika, Kerala Kaumudi and Madhyamam.

Newspapers in other regional languages like Hindi, Kannada, Tamil and Telugu are also sold in large numbers.

The Thrissur Fruits and Vegetables Marketing Society are establishing a canning industrial unit at Nadathara and it is going on very successfully.

The station serves more than 30% of the state's electrical energy requirements and acts as the principal feed to the northern half of Kerala.

Avinissery, a census town at south of Thrissur city is an important centre of Khadi and Village Industries.