If they went around from Delhi because of the tailwind on 29 why not land on 11? its also CAT3b. They had 90 mins of fuel at that point to wait out ATC changing runway. I have been to DEL so I know its easier said than done, but if its out of limits for 1 A320 then it is for at least some of the others too.
Lucknow 27 is also CAT3B so why would an RVR of 275m be an issue there? As Total Pressure says, even if the crew aren't CAT 3 trained or the aircraft isn't fully capable, surely, at some point the greatest threat to the aircraft is running out of fuel?
Is there something we don't know about the aircraft technical state either at dispatch or on approach?