It entirely depends on where you used to study in Singapore. It will definitely work to your advantage if you have been to a local school- primary, secondary or universities (like SMU, NTU, NUS, NP, SP, RP, TP, and NYP). It will make ICA officials understand that you can integrate successfully with the local community. On the other hand, there will not be many advantages if you attended any private institutes or an international school.