After the subjugation of the Dutch by Travancore in 1742, military operations of Marthanda Varma progressed against the northern neighbouring kingdoms including Thekkumkoor.
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The last day ceremony of the Kumaranallor Temple Ulsavam, the ārāttu (the day after the Thrikkarthika) is performed at the Meenachil River which is close to the Edathil Temple (2 km away from Kumaranalloor Devi Temple).
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Later, the Portuguese and the Dutch established trade relations with both these kingdoms, dealing in black pepper and other spices.