I installed the ORACLE client tool full Administrator option
Still not able to see the ODBC drivers for Oracle?
So that explains we have a compatibility issues.
Without again re-installing 64 bit Oracle 11g client.
I went into
C:\Windows\SysWOW64\odbcad32.exe and launched the ODBC data source Administrator.
Now I see all the driver of 32 bit that I installed.
In my case I need 32 bit drivers, so If you still need 64 bit drivers Please install 64 bit client Oracle 11G drivers only.