Currently also the chairman of Temasek Trust, Dhanabalan was appointed the chairman of Mandai Safari Park Holdings in 2015 to oversee the rejuvenation of Mandai. Following environmental impact assessments last year, Mandai announced the launch of a new Rainforest Park, which will focus on Southeast Asian biodiversity. The Bird Park will be relocated to the Mandai area and together with the Singapore Zoo, River Safari and Night Safari will form the Mandai Hub. The hub is expected to fully commence operations by 2023. Dhanabalan is the former chairman of Temasek Holdings, Singapore Airlines and DBS Group Holdings.