Hi Umesh,
There will be two steps in total.
1) Enabling detect protocol on the Explicit proxy listening port (eg: 8080). This will enable the proxy to understand the protocol of the request and then handover the connection to respective backend service.So this will enable the proxy to identify the SSL connections and pass it the backend SSL_Proxy service
2) Now you will need to set a certificate to be used by the SSL_Proxy service to intercept this connection. This can be done via Policy > SSL Intercept Layer (recommended) or via Configuration [tab] > Proxy Settings > SSL Proxy > Issuer Keyring.