I will be flying out of Mumbai airport at 13.00 on a Friday on British Airways. I'm looking to understand how long beforehand I should arrive - I'm unfamiliar with Mumbai airport procedures.
In case it's relevant:
I'm OneWorld Sapphire, which means I should be able to check-in in Business/use any relevant fast-track lanes.
I'm on a UK passport.
I'll probably be checking a bag.
Generic "2h"/"3h beforehand" statements on the BA/Mumbai airport website aren't what I'm looking for - from experience, how long does this typically take/what's a reasonable worst case?