The Nepal Weekly 
Devotees of craft based working communities worshipped Lord Bishwakarma on the first day of month of Ashwin (on 17 September, 2025). The ritual id observed considering Lord Bishwakarma as the creator of the three worlds, Heaven, Death (Middle World), and Patal Lok, is celebrated at the end of the rainy season and the beginning of autumn. Moreover, the importance of Lord Bishwakarma is described in the Rig Veda by writing 11 hymns dedicated to him.
This day is also observed as VastuDiwas.
Bishwakarma Puja is a significant festival celebrated in honour of Lord Vishwakarma, the divine architect and craftsman of the universe. This festive occasion allows individuals and communities to acknowledge the importance of tools, machines, and the skilled craftsmen who operate them. The festival highlights the essential role that these elements play in daily life and industry, fostering a spirit of respect and gratitude towards those who create and build.

According to a Hindu traditional belief, in ancient times, Lord Bishwakarma built magnificent palaces for the gods along with arms, weapons, and thrones, etc. He made a trident for Lord Shiva, Sudarshan-chakra for Lord Bishnu, a thunderbolt for Swargaraj Indra, and a Kal Danda for Yamaraj the god of death. It is said that he made all these things using the dust of the sun. Similarly, Hindu scriptures also mention that Ravana’s Lanka was built by him as well as Dwarika for Sri Krishna and Indra Prastha for the five Pandavas.
In the scriptures and Puranas, Lord Bishwakarma is considered to be the god of architectural instruments as well as other instruments. Therefore, it is a custom today to celebrate Bishwakarma Puja in Nepal and in India as well. Whereas there is no custom of animal sacrifice in today’s Bishwakarma puja, as done during the Mahanawami. Hindus worship Bishwakarma today especially in industrial areas including mills, iron goods shops, vehicle shops, and machinery repair workshops. Today, machines are cleaned, painted, and then they are worshiped. Most of these factories etc. are closed today due to the belief that tools and machines should not be used during this day.