There are various alternatives to this move.
1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g1f3  3... b7b6  4. g2g3  4... c8b7 The old main move of the Queen's Indian Defense. 5. f1g2  5... f8b4 The second most popular move. 6. c1d2 