Hi Sachin,
It is a bug in the HANA SP07 version. There are two options which you can try out,
1) Create I/P, activate and export the view. Just go and edit the xml file you receive up on export. You can add below sentence in <variableproperties> line.
defaultvalue="<value>"
2) One more option could be you can update the default value field of I/P in lower version of HANA and transport the object back to the higher version.
Hope this helps you.
Thanks,
Akshay