Hi Wawan, as you have mentioned, Polling Day is an official public holiday, hence, your car will not have any restrictions on driving on Polling Day, and you will not need to purchase an E-License.

Hi! Do refer to this page for more information https://www.onemotoring.com.sg/content/onemotoring/home/driving/OPC.html I believe you are allowed to drive your ROPC on polling day as it is a public holiday