Thrissur -Thrissur (Trichur), is the fifth largest city, the third largest urban agglomeration in Kerala and the 20th largest in India.Thrissur city is the headquarters of the Thrissur District. Thrissur city is situated in Thrissur District. It is is the capital of the District too. Thrissur has hill staions, Beaches, Backwaters, etc. It hosts the most important pilgrim places of hindus- Guruvayur, Christians- India”s first church - Paliyur St Thomas Church, muslims- india” first Muslim Juma Masjid Cheraman at Kodungasllooor.

The present day Thrissur is a District under The state of Kerala, in the union of republic of India. Thrissur city is the capital of this District.

Kulasekharas of Mahodayapuram - 9 th to 12 th Century.

12th century history witnesses the rise and growth of Perumpadappu Swarupam.It Changed its capital to different places at different times. Many Naduvazhies in Southern and Central Kerala recognized the supremacy of the Perumpadappu Moopil, even referred to as the "Kerala Chakravarthi" in the "Sivavilasam" and some other writings. Perumpadapu Swarupam is started a new era called Pudu Vaipu Era. it is traditionally believed to have commenced from the date of which the island of Vypeen was thrown from the Arabian sea.

From Ancient times, onwards Thrissur has played a significant roli in the political history of South India. It is interlinked with that of the Cheras of the Sangam age, who ruled over vast areas of Kerala with their capital at Vanchi. Thrissur with Kodugallooor was one of the main trade centre between Kerala and outside world in the ancient and medieval period.

The 14th and 15 centuries witnessed a period of aggressive wars in the course of which the Samorins of Calicut acquired a large part of the present Thrissur District and it sourroundings.

In the subsequent centuries the Portugese dominated the Thrissur. By the beginning of the 17th century the Portugese power in Kerala was on the verge of collapse and

About this time other European powers like the Dutch and the English came to the scene and challenged the Portugese. Internal dissension in the Perumpadappu Swarupam helped the Dutch in getting a footing on the in the kerala cost. As the Kerala Chiefs were conscious of the impending doom of the Portugese, they forseen the Dutch as the rising power and extended a hearty welcome to them

Decadence and consequential want of solidarity opened the flood gates of aggression. Hyder Ali and son ,Tippu Sultan figured very prominently during the period.