The river Ithikkara, which originates from the Western Ghats, separates Thiruvananthapuram and Kollam Districts at Pakalkuri in its meandering to the Arabian sea.
Ithikkara River, which originates from the Western Ghats, acts as a dividing line between Thiruvananthapuram and Kollam districts at Pakalkuri, as it flows towards the Arabian Sea through its winding course.