Ernakulam, the district formed from five taluks around Kochi

Background

Kerala's redrawn eco-sensitive map has fully excluded the residential areas of Kuttampuzha in this district, a village of 519.28 square kilometres of which 476.19 square kilometres falls inside the published boundaries.
Ernakulam District came into being on 1 April 1958 by incorporating the Kanayannoor, Kochi, Kunnathunadu, Aluva and Paroor taluks.
A long deliberation at the Kerala Fine Arts Hall, attended by political, social and media figures, was instrumental in the district's formation.
In 1405 AD the provincial king of Perumbadappu shifted his capital from Mahodayapuram to Kochi and came to be recognised as the King of Kochi.
With Dutch support the king succeeded in driving the Portuguese out of Kochi in 1663, and by 1800 the British had taken over the administration.
Sakthan Thampuran, who ruled from 1790 to 1805, was the mightiest of the kings of Kochi, and the Paliathachans of Chennamangalam were chief ministers to those kings for almost 150 years.
The district administration's history page puts the district's mangrove forests at around 465 square kilometres; Thattekkad and Mangalavanam are its two bird sanctuaries, and Ernakulam is Kerala's biggest pineapple producing district.