Murder at Cricket pitch

An aspring cricketer Ranjan gets inside the stadium. One of the players from his team, Gaurav gets arrested. A massive fight had taken place between Gaurav and Ranjan as Gaurav got run out because of Ranjan. Gaurav and Ranjan both wanted to get selected by selectors to play in International Cricket. Sanjana reveals in the court that she saw Gaurav beating Ranjan with the bat. Who killed Ranjan? Is Gaurav innocent?