The tagline of Karnataka Tourism:

Incredible India
One State, Many Worlds
God's Own Country
The Heart of India

The tagline of Karnataka Tourism is “One State, Many Worlds”. This tagline reflects the state’s diversity in terms of culture, geography, and people. Karnataka is home to a variety of cultures, including the Kannada, Tulu, Kodava, and Beary cultures. The state is also home to a variety of landscapes, including the Western Ghats, the Deccan Plateau, and the coastal plains. Karnataka is also home to a variety of people, including Hindus, Muslims, Christians, and Jains. The tagline “One State, Many Worlds” captures the essence of Karnataka’s diversity and makes it an attractive destination for tourists.

The other options are incorrect. “Incredible India” is the tagline of the Government of India’s tourism campaign. “God’s Own Country” is the tagline of Kerala Tourism. “The Heart of India” is a common phrase used to describe the state of Madhya Pradesh.