Athirappilly Falls, referred to as the “Niagara of India,” is located in:

The correct answer is: b) Thrissur.

Athirappilly Falls is a waterfall located in the Athirappilly Forest Reserve in Thrissur district, Kerala, India. It is the largest waterfall in Kerala and is often referred to as the “Niagara of India”. The falls are formed by the Chalakudy River and are about 80 feet (24 m) high. The falls are a popular tourist destination and are known for their scenic beauty.

The other options are incorrect because:

• Option a) Idukki is a district in Kerala, India. It is located in the central part of the state and is known for its tea plantations and dams.
• Option c) Wayanad is a district in Kerala, India. It is located in the northern part of the state and is known for its forests, wildlife, and coffee plantations.
• Option d) Palakkad is a district in Kerala, India. It is located in the south-central part of the state and is known for its rice fields, rubber plantations, and temples.