after couple of seconds of picking of phone one machine was speaking and asked some of basic questions regarding immigration to Canada and asked to press 1 if answer of all of these question is yes. On pressing of 1, one lady picked up the call she said I am canadian immigration office and if you are interested to migrate then started asking some of question related with education and experience and related to family etc. And at last she asked which credit card you have, of which bank and please provide card number, then I said I would not provide all these info to you so she disconnected. Looks like a fraud / scam caller it is.