I got a call from a number which is actually the MOM contact phone number. The caller said he was from the ICA and sounded very threatening. he gave a name which i couldn't get and was speaking in a false american accent. I asked for his name a couple of times and then i could get that he was actually having a very strong Indian accent. He started asking how long i am living in Singapore and what is my visa status and if i am working somewhere. I replied that I cannot answer such questions over the telephone. on hearing this he said it was just a verification call and disconnected the line.