[3] Shankar Nath Rimal, a civil engineer, standardised the symbol on the request of King Mahendra.

[4] It borrows from the original, traditional design,[5] used throughout the 19th and 20th centuries, and is a combination of the two individual pennons used by rival branches of the ruling dynasty.

A 1928 French book about Nepal shows a double pennant flag with a green border rather than the modern blue.

Many accounts date the creation of the double-pennant to King Prithvi Narayan Shah.

According to some historians, the Rana ruler Jung Bahadur changed the sun and moon symbols into faces of the sun and moon symbolizing the kings as the Rajputs of Lunar dynasty and the Rana themselves as the Rajputs of the Solar dynasty.

The constitution dedicated an entire section to the precise size and shape of the flag, since people were drawing it incorrectly.

[citation needed] In May 2008 during the drafting of the new constitution, various political parties demanded changes to the flag's design since it symbolized Hinduism and monarchy,[12][13] but this proposal was rejected.

The crimson red indicates the bravery of Nepali people (and is the country's national color) and the blue border represents peace and harmony.

[3] A theory is that the two points represented peace and hard work, using the symbols of the moon and sun respectively.

[10] A precise geometrical description of the Nepalese national flag was specified in Article 5, Schedule 1 of the former constitution of the Kingdom of Nepal, adopted on 9 November 1990.

[17] The large-scale production of the Nepal flag is difficult because of its exact proportions and it is normal for it to be completely out of shape during large events.

[22] During a 2018 visit of the Indian Prime Minister Narendra Modi to Janakpur, a version of the flag with incorrect shape and geometrical proportions was flown by officials, causing outrage on social media and with national personnel.