I have cleared all three interviews for this job and a successful reference check has also been done.
A week after reference check, I called the HR to check the status of the whole hiring process. He told me that they are pleased to offer me this job and the actual offer letter will follow in couple of days.
Its been 2 weeks after my last call to the HR and still no offer letter. I emailed him and he replied "We don't have a start date yet, I'll send you an offer letter as soon as I am able to."
Is this usual in the HR world?