State Emblem of India remained the emblem of the Indian government ever since. The emblem forms a part of the official letterhead of the Government of India and appears on all Indian currency as well. It also functions as the national emblem of India in many places and appears prominently on Indian passports. The Ashoka Chakra (wheel) on its base features in the centre of the national flag of India. The usage of the emblem is regulated and restricted under State Emblem of India (Prohibition of Improper Use) Act, 2005. No individual or private organisation is permitted to use the emblem for official correspondence.
Ashoka three colours, Saffron, White and Green with the Ashoka Chakra was selected. Ashoka is often credited with the beginning of stone architecture in India, possibly following the introduction of stone-building techniques by the Greeks after Alexander the Great. Before Ashoka's time, buildings were probably built in non-permanent material, such as wood, bamboo or thatch. Ashoka may have rebuilt his palace in Pataliputra by replacing wooden material by stone, and may also have used the help of foreign craftmen. Ashoka also innovated by using the permanent qualities of stone for his written edicts, as well as his pillars with Buddhist symbolism.