Starting 3 days ago, car emits a squealing noise during cold starts. See sample videos below:
The servicing invoice did say that new belt(s) might need re-adjustment within 3-5 days. So I popped in to our local NRMA MotorServe, they did some checks (bolts, pulley etc) and re-adjusted tension, and now no more noise! Of course, no charge for this re-adjustment.