Explanation:

- UN Women aims to partner with a gender park to enhance gender parity efforts in South Asia.

- Option 1: Punjab is an Indian state known for its rich culture but has no specific known initiatives called a "gender park."

- Option 2: Haryana, like Punjab, is another Indian state without a prominent "gender park" initiative.

- Option 3: Rajasthan, famous for its historical landmarks, does not have a recognized "gender park" project.

- Option 4: Kerala is actually the correct option. Kerala's Gender Park is a known initiative focused on gender equality and empowerment.