We have booked a return ticket from Vienna to Delhi. The entry ticket is from Jet Airlines from Delhi to Paris.

Would it be problematic if we fly from Delhi to Nice or Paris via Jet Airlines, and return to Delhi from Vienna via Air India? The PNR is different in this case, and the ticket will not be on one page.

We applied for a Schengen visa from France; will it be mandatory to spend the maximum time of stay in France?