Hi Ramya,
It seems you want to make HTTPS request which is not enabled by default. Please make sure you've configured everything successfully. Here is some info for you.
How to Configure SSL for SAP HANA XS Engine using SAPCrypto
Outbound httpS with HANA XS (part 1) - set up your HANA box to use SSL/TLS
Outbound httpS with HANA XS (part 2) - set up the trust relation
Best regards,
Wenjun