Cheers ell,I might be wrong but I'm pretty sure Portugal now accepts the Indian one? What I will say is I doubt the Portuguese border guards are looking that closely for specific batch numbers, I've been this year and got family and colleagues over there now and they have barely glanced at the paperwork, in some cases people have just had their passport checked.
Hopefully flying out next week but waiting till tomorrows review before booking
EDIT: https://www.itij.com/latest/news/portugal-accepts-covishield-vaccine-travellers
I've seen that article doing the rounds along with various others, but there has yet to be a confirmation from the Portuguese authorities that definitively accept this batch.
I've gone to the British Embassy Twitter who's pinned tweet basically says that it's ok...but we're awaiting confirmation.
As it stands Portugal is one of the few EU members not accepting Covishield at the moment.
What's really annoying is that on further investigation, is that no Indian made vaccines have been administered in the UK...whether that stacks up at Portuguese immigration is anyone's guess