While specific detailed historical records about Rajappa Park are scarce, it's generally understood to be a modern park developed to provide a green space for the residents and visitors of Thanjavur. It likely emerged as part of urban planning initiatives to enhance the quality of life and promote tourism in the city. The park's name might be associated with a local figure or benefactor who contributed to its establishment. Over time, it has become a beloved landmark in Thanjavur, serving as a community gathering place and a symbol of the city's commitment to providing recreational amenities for its people.