You can buy Public IP address from Internet Service Provider available in your region. Lease line will cost you more as it will be a dedicated bandwidth connection and will offer Public Static IP addresses too. You can purchase a 5Mb/s lease line with /29 subnet (5 usable static IPs) for around 1–1.5 Lakhs Per Annum.
Is public IP means real IP?
Public means the IP address can be visited from any computer in the world. Private means the IP address can only be used by those on the same network. Shared means other people use your IP address for their connection or websites.
How much does it cost for a public IP?
All Instance level public IP addresses (ILPIP) are charged at $0.004/hour. Each Cloud Service gets a free public VIP. Additional VIPs are charged at $0.004/hour. Public IP prefix is a range of contiguous public IP addresses.