The history of the Meenachil River is deeply intertwined with the development of the Kottayam region. Historically, before the advent of modern road networks, the river served as the primary artery for trade and transportation. Spices, timber, and agricultural goods cultivated in the high ranges of the Western Ghats were transported downstream on wooden rafts and traditional boats (kettuvallams) to the trading hub of Alleppey via Vembanad Lake.
The river's banks were instrumental in the early settlement of the region, fostering the growth of towns like Pala, Erattupetta, and Kottayam. During the colonial era, European planters and local farmers utilized the river to transport newly introduced cash crops, particularly rubber, which transformed the local economy.
In modern history, the river has faced significant ecological challenges. Unregulated sand mining in the late 20th and early 21st centuries led to severe degradation of the riverbed, prompting local protests and eventual government regulations. Today, the river remains a focal point for environmental conservation efforts in Kerala, balancing its historical role as an economic engine with the need for ecological preservation.