Malayalam superstar Prithviraj Sukumaran enter a new decade of his life, as the actor turned 40 on Sunday. On his birthday, he is expected to make a big announcement regarding an upcoming project. Per the speculations, Prithviraj might be joining Prabhas-starrer ‘Salaar’, helmed by director Prashanth Neel. Meanwhile, take a look at things that make him one of the richest stars of Malayalam cinema.