To win, South Africa needs to reach a challenging total. India may hold a slight advantage. With two wickets down, will the fast bowlers take early wickets? Otherwise, the match ends in a draw if rain falls on the fifth day. Although there's no reason to be surprised if India doesn't win the test, it's now the bowlers' turn to perform well.
India clearly are now the favorite for this game, as south africa has lost 4 wickets and they still need 211 more runs to. With one complete day remaining its almost impossible for south africa to draw the game. If you are placing bet then better place bet on India win if the book is still open.