Got a call from the number,
person identified himself as mark from singtel,
he mentioned that several people are hacking my internet account and hence its having problems
as I do not use singtel, but rather another provider, i was getting sure that this was a scam.
he then asked me WHETHER i pay the bills for my account and when i confirmed yes, he CONTINUED.
he asked me to open my computer and tell him what i see on the computer.
i asked him if he can speak hindi, judging from his accent.
he then first said sorry and after that started abusing in Hindi.
hope people know about this scam, as unlike me, several people use singtel at home for internet!