Hi everyone.
Just reviving this thread.
We did manage to get the B- permit for the whole family including my mother- in -law.
Anybody requiring any kind of assistance and guidance in this regard can contact me. And i got hold of some very efficient legalisation agents in india. So if u r ready to spend few bucks to get the work done in a week, i can also provide you the details of the same.

Till then enjoy the swiss summers
Tanu