I do not know what is Mukesh's contribution, but I do appreciate Dhirubhai who created this big empire from nothing. His vast industrial empire has helped India develop industrially and provided jobs to many Indians. I just had a quick glance at other answers. Someone has said who is happy. Are you his partner? This answer is in bad taste. We dont have to be happy with only our personal progress and envy others'. It is not his progress that makes me happy, but the jobs his industries provide to a large number of Indians. When I graduated as a chemical engineer with a very bright career in 1967, I remember how much was I struggling to get a job. When my son graduated, he got a job from Reliance a year before graduation and the opportunities he had were so many that he refused to accept it. The credit to considerably improved job situation in India goes to these industrialists and certainly not to politicians who simply promise employment to get power and hardly do anything. Of course, Mukesh's first rank in the world is just a number game and does not have much meaning. Reliance, Wipro, Infosys, and many companies in India have considerably improved job opportunities to Indians and that is what I am happy about.