Hi Amit,
This is the link to download HANA Studio and HANA Client Rev 60
https://hanadeveditionsapicl.hana.ondemand.com/hanadevedition/
This only updates your HANA Studio and Client to Rev 60.
You will also have to update your HANA Database to Rev 60.
Are you using Cloud or your company HANA Server?
If you are using AWS or Cloudshare, you can upgrade it,
For upgrading AWS you can follow the instructions given in this blog:
http://scn.sap.com/docs/DOC-30980
If you are using Company Server, then you will have to talk to your HANA Administrator regarding this.
To check your HANA Studio Version:
Go to Help-> About SAP HANA Studio.
To check your HANA DB version:
Go to Administrative Console: R-Click on your System-> Click on properties-> Version History.
Regards,
Vivek