Hello all - did a search and nothing quite matched...

I'm flying HYD-DEL-LHR in a few days, with the domestic leg on AI and the international on BA.

When I've done this in the past with AI, they've refused to interline the luggage. When I've done it with 9W (well, S2), they've had no problem in doing so.

I can't find any reference to AI's interline agreements, but I'd expect two big airlines like BA and AI to have one (certainly, it seems to exist in the opposite direction).

What do you think? Should I be insisting more strongly in HYD, or just let it go? It's not the end of the world, but quite annoying.