His passing sparked an outpouring of tributes, including from Indian Prime Minister Narendra Modi, who praised him as an "exceptional athlete." Singh's running club and charity, Sikhs In The City, announced upcoming events to celebrate his life, while police initiated a search for the vehicle involved in the crash. Singh was a symbol of perseverance, overcoming childhood challenges and personal tragedies to achieve greatness in his later years. His mantra of "Eating less, running more, and staying happy" will inspire many to come.

Singh's remarkable journey began in Punjab where he faced mocking due to his weak legs. After enduring the devastating loss of his wife and son, he found solace in running, which transformed his life and led him to participate in numerous marathons around the globe. His dedication gained him recognition, including a campaign with Adidas and an invitation from the Queen to visit Buckingham Palace. Singh's impact on the running community and beyond is profound, as he inspired millions with his humble spirit and remarkable achievements.