The capital of the Venad kingdom, which later evolved into Travancore, was:

Padmanabhapuram
Kollam
Thiruvananthapuram
Kochi

The correct answer is A) Padmanabhapuram.

Padmanabhapuram was the capital of the Venad kingdom from the 16th century to the 18th century. It is located in the Kanyakumari district of Tamil Nadu, India. The city is known for its palaces, temples, and gardens.

The Venad kingdom was a Hindu kingdom that ruled over the southern part of Kerala. The kingdom was founded in the 8th century by the Chera dynasty. The Venad kingdom was a powerful kingdom and it played an important role in the history of Kerala.

The capital of the Venad kingdom was moved to Thiruvananthapuram in the 18th century. Thiruvananthapuram is the current capital of Kerala.

The other options are incorrect.

B) Kollam was the capital of the Venad kingdom from the 13th century to the 16th century.

C) Thiruvananthapuram was the capital of the Venad kingdom from the 18th century to the present day.

D) Kochi was a port city that was ruled by the Portuguese and the Dutch.