Japan, Iran, Taipei, Singapore and Malaysia, besides India are taking part in the Championship which will end on October 20.
In the Senior Men league matches, India lost to Singapore 0:40 while their women counterparts were also beaten by Iran 0:32 at the S P Mukherjee Swimming Pool Complex here.
In other Senior Men league matches, Iran beat Japan 7:6 while Taipei defeated Malaysia 10:3.
The Championship was inaugurated by Sports Authority of India Director General Jiji Thomson yesterday.
The object of the game is to get the ball into the opponent's goal, the team scoring the most goals in a set time being the winner.