Pingali Venkayya’s contribution is now widely recognised in history books and competitive exam material. Earlier versions of the flag included symbols like the spinning wheel (charkha), which represented self-reliance and the Swadeshi movement. When India became independent, the charkha was replaced with the Ashoka Chakra to represent law, dharma and progress.
For quick revision, remember this GK point: Pingali Venkayya – Designer of the Indian national flag, Final adoption – 22 July 1947, Ashoka Chakra – 24 spokes, navy blue. This combination is very important for exams like SSC, railway and state-level GK tests.