Originally Posted by
kt74
Yup, I've been told this as well. I know the Brits won't tell, but, equally, they won't lie if they are asked directly
Not sure how outdated this info is, but please don't count on it. An acquaintance who had just naturalised as a British citizen flew to their home country (India) soon after the event on their Indian passport - and almost got denied entry. Apparently Indian authorities allow a grace period of three months to use the Indian passport and luckily for the acquaintance they were within that timeframe.
Moral of the story - (at least some) governments do share this info. Whether it's a pull or push, I can't say.
As an aside - nice to see folks have had their ILRs for ages. I thought I was in minority wanting to stick w/ my original nationality!