Thanks Danny. Along with our application for renewing the B permit, we requsted for C. It has taken 4 months and in the mean time we have neither B nor C in hand. I had to travel out of CH for business and hence needed a visa for my return.

The first return visa was valid for 1 month and 20 days (the OCP assumed that our permit issue would be settled by then). After that when I had to travel again, I had to take another return visa. That time I took it for 90 days. I have to travel again in two weeks now, however luckily, the 2nd return visa is still valid, till the end of March.

So, you think the C permit would be coming soon, eh?