had there been any controversy related to this event?
Yes,  a number of results in boxing, gymnastics and judo were overturned by officials after initial decisions were appealed against.
2012 Summer Olympics

During the Games, eight competitors in the badminton women's doubles were disqualified for "not using best efforts", when they tried to lose matches in the group stage to obtain more favourable fixtures in the knockout rounds. A number of results in boxing, gymnastics and judo were overturned by officials after initial decisions were appealed against.
what is holkham hall? An 18th-century country house. where is it located? Holkham. who built it? William Kent. which country did he belong to? England. what type of architecture was he renowned for? Palladian style of architecture. what is the special feature of it? UNANSWERABLE what sorts of furniture has he designed? He designed furnishings for Hampton Court Palace and Lord Burlington's Chiswick House. where is the former located? In the London Borough of Richmond upon Thames. are there any sport events held there? Yes, Road Cycling Time Trial of the 2012 Summer Olympics.
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2012 Summer Olympics [SEP] Controversies
A number of results in boxing, gymnastics and judo were overturned by officials after initial decisions were appealed against. Ye Shiwen faced doping allegations after her gold medal in the women's 400m Individual Medley as she came from being behind the world record in the final 50m to beating it by 1.02 seconds. Furthermore, her last 50m was swum 0.17 seconds quicker than the men's winner of the corresponding race. All charges were later dropped.