"They have arrived well before the intended time than we had thought they would arrive," Rawat said at an event organised by the Vivekanand India Foundation.
Last week, China unveiled its largest defence spending increase in three years, setting an 8.1 per cent growth target this year, fuelling an ambitious military modernisation programme and making its neighbours nervous.
Today, China is the second largest economy in the world.
"While China ensured that their economy must rise, they did not forget the rise of their military power.
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Rawat said the world looks at India as a country that can balance the rise of China in the region as it was showing its "assertiveness".
Rawat also said strong economic growth is only possible with a strong defence.
"We cannot become the net security provider if the economy does not keep pace with the changes," Rawat said.