The land is serviced by the Karamana River, which originates from the southern tip of the Western Ghats at Agastya Mala.

Karamana is a major transit point for both trade and travel to and from the Kanyakumari district of neighbouring Tamil Nadu.

Like most parts of Thiruvananthapuram, Karamana has a substantial non-Malayalam speaking population, which contributes to the vibrant culture of Trivandrum.

National Highway 66, the main travel and trade corridor of Kerala, passes through Karamana onward to the Central business districts of Thiruvananthapuram.

[2] His disciple, Papanasam Sivan was influenced by his compositions, and worked in the government until age 35, when he began composing lyrics in praise of Siva, creating over a thousand songs.