Belgian captain Lieselotte van Lindt scored the lone goal of the match in the 35th minute to help the hosts clinched a 1-0 win against the Indian eves.
"I would have expected India to go all out into the attack in the last quarter as they had a lot to lose in this match, but it did not happen," said Kina.
"I must say I was surprised by India not throwing everything into the attack. They were a goal down and would not have gained anything by the score-line staying that way," he added.
A day after the winning the opening game against India, Belgium were still in celebration mood, aware that this win could go a long way in securing an entry into the Olympic Games.
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Impressed by the skills of a few Indian players, Kina said Belgium played better as a unit.
"India have some very skillful players, and their captain Ritu Rani played an outstanding game. But collectively we played much better," said Kina.
The race to the Olympic Games could whet down to the contest between India, placed No. 13 in the world rankings, and Belgium, who are one spot ahead at No. 12.
The preliminary group also features Australia (world No. 2) and New Zealand (world No. 4) and only a shock win against one of them could lift India's fortunes.