Ministership of Kochi held by the Paliath Achans ended during this period.
Meanwhile, the Dutch, fearing an outbreak of war on the United Provinces, signed the Anglo-Dutch Treaty of 1814 with the United Kingdom, under which Kochi was ceded to the United Kingdom in exchange for the island of Bangka. However, there are evidences of English habitation in the region even before the signing of the treaty. In 1866, Fort Kochi became a municipality, and its first Municipal Council election was conducted in 1883. The Maharaja of Cochin, who ruled under the British, in 1896 initiated local administration by forming town councils in Mattancherry and Ernakulam. In 1925, Kochi legislative assembly was constituted due to public pressure on the state.
Towards the early 20th century, trade at the port had increased substantially, and the need to develop the port was greatly felt. Harbour engineer Robert Bristow was brought to Kochi in 1920 under the direction of Lord Willingdon, then the Governor of Madras. In a span of 21 years, he transformed Kochi as one of the safest harbours in the peninsula, where ships berthed alongside the newly reclaimed inner harbour equipped with a long array of steam cranes.
In 1947, when India gained independence from the British colonial rule, Cochin was the first princely state to join the Indian Union willingly. In 1949, Travancore-Cochin state came into being with the merger of Cochin and Travancore. The King of Travancore was the Rajpramukh of the Travancore-Cochin Union from 1949 to 1956. Travancore-Cochin, was in turn merged with the Malabar district of the Madras State. Finally, the Government of India's States Reorganisation Act (1956) inaugurated a new state — Kerala — incorporating Travancore-Cochin (excluding the four southern Taluks which were merged with Tamil Nadu), Malabar District, and the taluk of Kasargod, South Kanara. On 9 July 1960 the Mattancherry council passed a resolution—which was forwarded to the
