Marthandam is a small town in Kanyakumari District. Marthandam is a major trade centre across National Highway (NH 47). Marthandam is famous for honey, cashew nut processing, rubber and hand-embroidered motifs. It is about 40 km from Thiruvananthapuram and lies between Kanyakumari and Thiruvananthapuram. The town is famous for the CSI Church built in 1883. Thiruvattar is about 6 km from Marthandam.
Marthandam has bus services to Thiruvananthapuram, Nagercoil and Bangalore. The nearest airport is the Trivandrum International Airport and Kuzhithurai Railway Station is the nearby railhead.