Hi Ram,
If you want to get from the download site:
You can find the downloads at SAP service market place.
SAP Service Marketplace - Home
Click SAP Support Portal (middle of the screen)
Click Software Downloads (grey top menu bar)
Click Support Packages and Patches (middle of the screen under A-Z index)
Select 'S'
Select 'SDK for SAP ASE'
You can pick the 15.7 or 16.0 version.
Click Support Packages and Patches on the right side of the screen.
(This will give you current versions of the patches)
(The patches are complete install patches)
This is the location for the latest downloads.
Older downloads can be found in 'SY Software Developer Kit'
If you want to look at the Windows versions of the drivers included in the SDK and the EBFs numbers go to this wiki link: Software Developer Kit for ASE driver versions for Windows - Wiki - SCN Wiki
Thanks,
Dawn Kim