The fourth slot will be decided Monday when South Korea and China square off in Group B. South Korea only needs a draw while China must win to play in the medal round.
On Sunday, India beat Pakistan 3-1 to top Group A. Pakistan and Japan ended the group stage on four points, but Pakistan advanced on a better goal average.
It was India's third consecutive win against the Green Shirts this year, as in the London World League Semifinals India won 7-1 in the group stage and 6-1 in the 5th-6th classification.
RESULTS: Group A: India 3 Pakistan 1, Japan 3 Bangladesh 1.
STANDINGS
GROUP A
P W D L F A Pts
INDIA 3 3 0 0 15 2 9
PAKISTAN 3 1 1 1 10 5 4
JAPAN 3 1 1 1 6 8 4
BANGLADESH 3 0 0 3 1 17 0
GROUP B
P W D L F A Pts
MALAYSIA 2 2 0 0 9 2 6
S KOREA 2 1 0 1 8 4 3
CHINA 2 1 0 1 3 8 3
OMAN 2 0 0 2 3 9 0