designer of the indian flag

Pingali Venkayya (2 August 1876 died 4 July 1963)

 was an Indian freedom fighter and

 the designer of the flag on which the Indian national flag was based. Various so-called 

national flags had been used by members of the Indian independence movement prior

 to independence being achieved in 1947. Venkayya's version was first designed for the

 Indian National Congress and subsequently modified in 1947 

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")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

By law, the flag is to be made of khadi, a special type of hand-spun cloth or silk, made popular by Mahatma Gandhi. The manufacturing process and specifications for the flag are laid out by the Bureau of Indian Standards. The right to manufacture the flag is held by the Khadi Development and Village Industries Commission, who allocates it to regional groups. As of 2009, the Karnataka Khadi Gramodyoga Samyukta Sangha has been the sole manufacturer of the flag.

Usage of the flag is governed by the Flag Code of India and other laws relating to the national emblems. The original code prohibited use of the flag by private citizens except on national days such as the Independence day and the Republic Day. In 2002, on hearing an appeal from a private citizen, Naveen Jindal, the Supreme Court of India directed the Government of India to amend the code to allow flag usage by private citizens. Subsequently, the Union Cabinet of India amended the code to allow limited usage. The code was amended once more in 2005 to allow some additional use including adaptations on certain forms of clothing. The flag code also governs the protocol of flying the flag and its use in conjunction with other national and non-national flags 

Sizes of the National Flag

Flag size Length and width (mm) Size of Ashoka Chakra (mm)
1 6300 × 4200 1295 2 3600 × 2400 740 3 2700 × 1800 555 4 1800 × 1200 370 5 1350 × 900 280 6 900 × 600 185 7 450 × 300 90 8 225 × 150 40 9 150 × 100 25

Design and construction details

According to the Flag code of India, the Indian flag has a ratio of two by three (where the

 length of the flag is 1.5 times that of the width). All three stripes of the flag (saffron, white

 and green) are to be equal in width and length. The size of the Ashoka Chakra is not specified

 in the Flag code, but it has twenty-four spokes that are evenly spaced In section 4.3.1 of  IS1

 Manufacturing standards for the Indian Flag", there is a chart that details the size of the Ashoka 

Chakra on the nine specific sizes of the national flag In both the Flag code and IS1, they call for 

the Ashoka Chakra to be printed or painted on both sides of the flag in navy blue Below is the list 

of specified shades for all colours used on the national flag, with the exception of Navy Blue, 

from  IS1: Manufacturing standards for the Indian Flag" as defined in the 1931 CIE Colour

 Specifications with illuminant C The navy blue colour can be found in the standard IS:1803-1973