Hi, I am sure you would have received the policy copy on your registered mail id, and the hard copy is delivered within 7-10 days.
And if you haven't received the policy copy on your registered email id yet, then you can get one on their website.
You can click this link: https://www.hdfcergo.com/customer-care/customer-support.html and fill few details, and you will receive the soft copy instantly on your email id.
