Hi Saravanan,
This Problem happens due to "Network Connections" Settings.
Please check your network connections options.
Menu Options From Studio: Windows --> Preferences -->
In Preference Popup, General --> Network Connections Options.
This My Network Connections Property and It works fine for me.
Please change your network connections based on your proxy settings and try this install.
Please refer this scn link as well:
HANA dev edition . Using HANA studio with an http proxy
Regards,
Muthu