The correct answer is a) Pamba River.
The Sabarimala temple is a Hindu temple located in the Western Ghats mountains in Kerala, India. It is dedicated to Ayyappan, a Hindu deity. The temple is a major pilgrimage site for Hindus, and is especially popular during the Mandalam season, which runs from November to January.
The temple is located on the banks of the Pamba River. The Pamba River is a tributary of the Periyar River. The Pamba River is a sacred river for Hindus, and is believed to have healing powers.
The other options are incorrect.
b) Periyar River is a river in Kerala, India. It is the second longest river in the state, after the Bharathappuzha River. The Periyar River is a major source of water for irrigation and hydroelectric power in Kerala.
c) Karamana River is a river in Kerala, India. It is a tributary of the Periyar River. The Karamana River is a major source of water for irrigation and drinking water in the city of Thiruvananthapuram.
d) Chaliyar River is a river in Kerala, India. It is a tributary of the Pamba River. The Chaliyar River is a major source of water for irrigation and drinking water in the district of Malappuram.