Washington: In a strong message to China, Defence Minister Rajnath Singh has said that if harmed, India will not spare anyone, as he asserted that India under Prime Minister Narendra Modi has emerged as a powerful country and is headed to be among the top three economies of the world. Singh, in his address to the Indian-American community in San Francisco, also sent a subtle message to the US that New Delhi does not believe in a diplomacy of zero-sum game and its relationship with one country cannot be at the expense of the other. The defence minister was here…