The central government has presented some modifications in the Nation s Flag Code by permitting the Indian national flag to fly both day and night and be machine-made besides using polyester fabric. To celebrate and be a part of the Har Ghar Tiranga movement, check out all the essential terms & conditions below. Har Ghar Tiranga Rules: Government Tweaks National Flag Code; Know Terms & Conditions to Avoid Incorrect Display of Tricolour Ensign at Home.