I will be applying for a short term tourist schengen visa at VFS Italy from Bangalore, India.
According to their 'Documentos necessários' section, it's mentioned
Proof of all internal travel within the Schengen territory including train bookings, car rentals
I would like to know if bus tickets booked via. Flixbus are valid proof of transit within the Schengen territory (within and across countries) or not?