Small monkeys roam Delhi's streets and prefer heavily urbanized areas with plenty of living space among the buildings and cannot be killed because many Indians see them as sacred. A larger, domesticated species of monkey, the
langur, was brought to the Games Village to scare away the smaller monkeys. On the second day of the games, three Ugandan delegates were injured by a malfunctioning security barrier at the games' village. The officials had cuts and bruises and were hospitalized overnight for observation. A senior official from Uganda raised allegations of discrimination by Indian officials. Uganda's sports minister lashed out at Indian officials and demanded an apology for the accident. The chairman of the Games' Organising Committee, Suresh Kalmadi, apologized to the Ugandan High Commissioner to India for the incident.
Infrastructural failures On 21 September 2010, a footbridge under construction for the Games near the Jawaharlal Nehru Stadium collapsed, injuring at least 23 people who were working at the structure, mainly workers, underscoring fears of poor workmanship. Commenting on the incident, the then
Chief Minister of Delhi Sheila Dikshit controversially remarked that the footbridge was only meant for spectators and not for athletes. Following the collapse, Fennell expressed again the concerns that conditions at the Games Village, which had "shocked the majority", would seriously compromise the entire event. The company that was building the foot bridge, P&R Infraprojects, was subsequently blacklisted by the Delhi Government and was not allowed to get government contracts. Reportedly, progress was still slow and four or five towers at the Games village were unfinished, lacking facilities such as wireless internet, fitted toilets and plumbing. In addition, rubble, unused masonry and discarded bricks littered the unfinished gardens. According to sports historian Boria Majumdar, author of the
Sellotape Legacy: Delhi and the Commonwealth Games, India "may have to pull a miracle." The next day after the catwalk fell, part of the drop ceiling of the Commonwealth Games weightlifting collapsed. Also on the same day, Indian bantamweight boxer
Akhil Kumar's bed in the Games village collapsed when he sat on it. "I sat down on my bed to rest but suddenly it gave way. After that I noticed that part of it has no plywood", he said On 27 September 2010, the South African delegation reported that a snake was present in an athlete room in the Games Village. A day earlier, animal authorities had to be called in to evacuate a
king cobra from the tennis arena's sewage system. On 7 October, during the Games day 4, the scoreboard at the
Delhi University Stadium crashed to the ground when a supporting chain snapped. As the competition would start a week after the incident, there was no harm to the athletes or the event. Although cricket was not on this Game's program, UK and Canadian authorities also warned about potential attacks on commercial targets in Delhi ahead of the games.
Jama Masjid Mosque incident On 19 September 2010, unknown gunmen on a motorbike opened fire with an automatic pistol on a tourist bus outside the
Jama Masjid Mosque mosque in Delhi. The attacks, which came a fortnight before the start of the games, injured two Taiwanese tourists. Two hours later, a
Maruti car exploded in the vicinity, reportedly from a deliberate low-intensity
pressure cooker bomb which had been assembled inside. No fatalities or major damages were reported. The incidents, which were purportedly claimed by the
Indian Mujahideen group, provoked fears about lack of security in the city for the upcoming games. However, police in Delhi initially denied the role of any organised terror group and instead blamed the attacks on "disgruntled youths and local criminal gangs." Officials suggested that a possible motive of the strike was to instill fear in people ahead of the Commonwealth Games. ===Fear of a
dengue outbreak=== In 2010, the heaviest monsoon rains in 15 years was recorded in India, along with large quantities of standing water on CWG construction sites as well as in tanks and ponds, this situation raised concerns over increased levels of
Aedes aegypti larvae and mosquitoes in Delhi. In the run-up to the games it was reported that 65-70 cases of
dengue fever were being diagnosed each day in the city, with the number of cases "likely to hit the 3,000 mark" at the opening ceremonies day in 3 October.
Water related Illness Many swimmers were reported to have fallen ill. Initially, concerns were raised over the quality of water in the swimming pools of the
SPM Swimming Pool Complex. It was said that more than 20 percent of the English team's swimmers – about eight to 10 competitors – had been struck down with a stomach virus. The Australian team also reported that at least six of its swimmers had been sick, including
Andrew Lauterstein, who had to withdraw from the 50-meter butterfly. Commonwealth Games Federation president Mike Fennell said officials would conduct tests to make sure the pools were not the source of the illness. "If there is something unsafe, you cannot swim in that water. It is a matter we have to deal with a great deal of urgency," he said. Daily water quality tests were being carried out on the water of the pools, as mandated by the event standards. Additional tests were ordered after news of the illnesses, but they also did not find anything amiss. The Australian team's chief doctor, Peter Harcourt, ruled that the "chances of the [Delhi] pool being the cause of the problem is very remote" and praised the hygiene and food quality in the Delhi Games Village. He suggested that it could be a common case of
Traveler's diarrhea (locally called
Delhi belly), or the Australian swimmers could have contracted the stomach virus during their training camp in
Kuala Lumpur, Malaysia. English Olympic and Commonwealth gold-medalist swimmer
Rebecca Adlington said that the water quality was absolutely fine. ==Boycotts==