Arjun joined the India Against Corruption Movement in 2011 at the age of 17. He later advised the Chief Minister of Delhi on various policies and led a movement that pushed for reforms of rape laws. He was awarded the Chevening Scholarship by the British Government, which allowed him to do his Master's in Public Policy at the London School of Economics and Political Science. Right at the end of his scholarship, he started to feel sick. He was diagnosed with muscular dystrophy and then with spondyloarthopathy, an autoimmune disorder. He was at wit's end. Then, his healing process began.