Dear Patil, Aakash,
You can't because Raspberry Pi uses ARM and ARM will not run inference using OpenVino tools. The Raspberry PI board itself is just a host. It absolutely needs an NCS stick plugged in to do actual inference, and NCS is the device that performs OpenVino inference. I suppose if OpenVino had an ARM plugin it would work but currently we don't have one. You can certainly write one though and submit a pull request to https://github.com/opencv/dldt . I understand that this is a very ambitious task though. OpenVino recently released the full source code for the VPU (NCS) plugin, hopefully inciting developers to write their own plugins for custom hardware.
Thanks,
Shubha
