[Stacey]

That's great Sarah.
When it comes down to it about the wedding in India (if that happens), your comfort level is important. If you're not comfortable travelling for any reason at all, I'm sure that would be respected. Especially if you're showing your support and interest in being involved in any celebrations that happen in the UK. The zoom or live stream is also a great idea, that's been more common in the last year for obvious reasons and it would allow everyone that cannot attend to celebrate with them.
Ultimately, given your history and his connection to the rest of the family, just knowing you're supporting this and want him to be happy probably means the world to him regardless of whether you travel for the wedding, etc.