Thiruvananthapuram is the southern-most district of the state of Kerala
. It is bordered by Kollam District
in the north, Tirunelveli District
and Kanyakumari District
of the state of Tamil Nadu
in the east and south and
the Arabian Sea
in the west. The district covers an area of 2,192 sq km. Thiruvananthapuram has internationally renowned beaches, historic monuments, cultural institutions, palaces, art galleries, backwater stretches and a rich cultural heritage. The district once formed a part of Travancore, which had its capital at Padmanabhapuram, now in Tamil Nadu. The district has a rich variety of plants ranging from rare orchids, medicinal plants, and spices to hedge plants, tuber crops, plants yielding edible fruits and fiber yielding plants.