Competing at her first Summer Olympic Games, Pramila Rijal was the oldest person to compete for Nepal at the London Olympics at age 27. She attained qualification to the Games with the use of a wildcard because she had not set any previous time for the women's 100 metres. Rijal revealed that she had problems with the starting block but hoped the training in Kent would aid her in setting a new Nepalese national record. She took part in the fourth heat on 3 August, finishing sixth out of nine competitors, with a time of 13.33 seconds. The result was attributed to Rajal having back pain in the days before the event and required painkillers to help her cope. She finished 71st out of 78 runners overall, and was eliminated from the event since only the first three finshers of each heat and the following ten quickest qualified for the next round.