Media and advertising agency Madison World and Selvel Outdoor Advertising today announced they have acquired a majority stake in former India cricketer Sunil Gavaskar's sports management company Professional Management Group (PMG).PMG was started in 1985 by Gavaskar and advertising professional Sumedh Shah.PMG, the first sports management firm in the country, is involved in syndicating sponsored sports columns in newspapers, television sports programming and other events.Madison to pick majority stake in Sunny`s PMG