There is nothing exclusively Jewish about the hamesh hand. Arab cultures often refer to it as the Hand of Fatima, which represents the Hand of G-d. Similar designs are common in many cultures. Why it has become such a popular symbol among Jews? I haven't been able to find an adequate explanation anywhere. My best guess: in many cultures, this hand pattern represents a protection against the evil eye (a malignant spiritual influence caused by the jealousy of others), and the evil eye has historically been a popular superstition among Jews.
National symbols of India depict the country’s image and have been chosen very carefully. The national animal, tiger symbolises power; the national flower, lotus symbolises purity;the national tree, banyan symbolises immortality, the national bird, peacock symbolises elegance and the national fruit, mango symbolises the tropical climate of India. Similarly, our national song and national anthem were a source of inspiration during the freedom struggle. The national emblem of India depicts four lions standing back to back, symbolising power, courage, pride and confidence. Hockey was at its peak when it was adopted as the national game of India. Here is some more information about the national symbols of India: