<P> The National Flag of India is a horizontal rectangular tricolour of India saffron , white and India green ; with the Ashoka 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 , and it became the official flag of the Dominion of India on 15 August 1947 . The flag was subsequently retained as that of the Republic of India . In India , the term `` tricolour '' ( Hindi : तिरंगा , translit . Tiraṅgā ) almost always refers to the Indian national flag . The flag is based on the Swaraj flag , a flag of the Indian National Congress designed by Pingali Venkayya . </P>
when was the national flag of india adopted
during a meeting of the Constituent Assembly held on 22 July 1947