Facts about our National Flag you have must to know  National Flag of India is a horizontal rectangular tricolour of India saffron, white & india green. There is a Ashok Chakra in the centre of it consisting of a 24 spokes wheel in Navy blue. It becomes National Flag of India on 15 August of 1947.I It is designed by Pingali Venkayya. Material used in this flag must be of KHAADI. Proportion should be 2:3 Except government services, Civil people can use Tiranga only on NATIONAL DAYS. Design and Construction Details:  According to the Flag Code Of India Flag size must be as per below mentioned-