Correct Option: D

The National flag of India is a horizontal rectangular tricolour flag, of India saffron, white and India green; with the Ashok Chakra, a 24-spoke wheel, in navy blue at its centre. It was adopted in its present form during a meeting of the Constituent Assembly held on 22 July 1947, when it became the official flag of the Dominion of India. The flag is based on the Swaraj flag, a flag of the Indian National Congress designed by Pingali Venkayya. During the National conference of Indian National Congress at Kakinada, Venkayya suggested that India should have a national flag of its own and Mahatma Gandhi liked this proposal. He suggested that Venkayya could come up with a design.