It might be under-repaired, but entering "Taj Mahal maintenance" into Google shows there are tons of travel articles on their maintenance efforts, and which parts will be under repair when. It seems a bit questionable that this is totally omitted.
This is from the BBC which has a definite negative reporting bias on anything to do with India.
Wrong. BBC is as much fair on this issue as Indian Media state or Supreme Court. https://www.indiatoday.in/mail-today/story/sc-holds-asi-resp...
Also, BBC is quite fair, unlike Indian Media which doesn't have the guts to take Modi in to account for not holding a single press conference in his 4 year rule.