Kakolat Falls is a picturesque waterfall located in:

Nawada district
Gaya district
Bhagalpur district
Katihar district

The correct answer is: a) Nawada district.

Kakolat Falls is a picturesque waterfall located in the Nawada district of Bihar, India. It is one of the most popular tourist destinations in the state. The waterfall is formed by the Kakolat River, which originates in the hills of the Kaimur Range. The waterfall is about 100 feet high and 50 feet wide. It is a popular spot for swimming, picnicking, and camping.

The other options are incorrect because:

  • Gaya district is located in the south-central part of Bihar.
  • Bhagalpur district is located in the north-central part of Bihar.
  • Katihar district is located in the north-eastern part of Bihar.