Portugal: Schengen visa and UK visa
I''m a Indian and I'll be doing a term in Portugal this spring on a student exchange. I want to travel to UK to visit some friends first before the term starts. Can anyone tell me if I need to show the actual flight bookings and accomodation details(I'll stay with friends in UK and will be finding a hostel/flat in Portugal) for these visas? or just an itinerary giving my plan of travel? and will it land me in trouble if I change this itinerary later?
I don't know my exact travel plan yet. I might make a stopever in Oman on my way there(they have visa on arrival)... lol can I actually apply for the UK visa atleast with such vague plans? As there is no UK visa center where I stay, I would like to get it in the X mas break when I go home. Other 2 can be done later.
Would highly appreciate any inputs at all! Thanks in advance :)