Padmanabhapuram Palace, Historical palace in Kanyakumari, India.

Padmanabhapuram Palace, also called Kalkulam Palace, is a Travancore-era wooden complex inside a granite fortress at the foot of the Veli Hills. Its halls and living quarters are built in traditional Kerala style, with a flat coffered ceiling of square panels on rows of turned wooden pillars, a railed platform before a central doorway, and slatted side walls with latticed window screens. The four-storeyed central mansion, Uppirikka Malika, rises at the middle of the compound.

The compound began in the early seventeenth century as the seat of Travancore rulers. Later work in the eighteenth century added new buildings and decorations as the kingdom grew.

The name Padmanabhapuram means City of Lord Padmanabha, the family deity to whom King Marthanda Varma dedicated his kingdom, ruling as Padmanabha dasa. In the Navarathri Mandapam, dance performances were held during Navarathri, and the royal family watched unseen through wooden screens in rooms attached to the south side.

The site sits in a rural area near the Tamil Nadu border and requires walking between different buildings. Pathways lead through shaded courtyards, and rooms stay cool due to thick wooden walls and high elevation.

Some rooms have windows made from thin shell panels instead of glass that let soft light through and filter the air. This technique was common in Kerala centuries ago and is now rare to see.