Mool Nanakshahi Calendar
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The Mool Nanakshahi Calendar is gathering momentum across the world as Sikhs yearn to follow fixed dates which are an accurate historic representation of the Sikh History; this provides the platform for Sikhs to agree on a common calendar. Sardar Pal Singh Purewal, the main architect of the calendar, has written scholarly articles on this issue and explains the difference between the Mool Nanakshahi Calendar and Bikrami Calendars. There is a difference between the Nanakshai Calendar and the Mool Nanakshahi Calendar as such as the Mool Nanakshahi Calendar fixes dates which were movable in the Nanakshahi Calendar.
Meaning of the Word Mool
The "Mool" prefix, means "original". SGPC released a calendar which was close to this one on the 300th year of Khalsa’s Creation in 1999.
In the News
The extensive 2 day Mool Nanakshahi Calendar Implementation Conference in Chicago detailed the significance of the changes. Several scholars and topics on this topic lead the presentations and discussions. 
Significant resolutions were adopted at the Chicago conference on conference in December 2017. More importantly 3 dates were fixed for the upcoming years so that the Nanak’s Gurpurab, Bandee Chorrd Divas, and Holla-Muhalla fall on the same date each year; the fixed dates are:
- Bandee Chorrd Divas – February 12th every year
- Holla-Muhalla – March 14th every year
- Guru Nanak's Gurpurab – April 14th every year
The months in the Mool Nanakshahi calendar are: 
|1||Chet||ਚੇਤ||31||14 March – 13 April||Basant (Spring)|
|2||Vaisakh||ਵੈਸਾਖ||31||14 April – 14 May||Basant (Spring)|
|3||Jeth||ਜੇਠ||31||15 May – 14 June||Garikham (Summer)|
|4||Harh||ਹਾੜ||31||15 June – 15 July||Garisham (Summer)|
|5||Sawan||ਸਾਵਣ||31||16 July – 15 August||Rut Baras (Rainy season)|
|6||Bhadon||ਭਾਦੋਂ||30||16 August – 14 September||Rut Baras (Rainy season)|
|7||Assu||ਅੱਸੂ||30||15 September – 14 October||Sard (Autumn)|
|8||Katak||ਕੱਤਕ||30||15 October – 13 November||Sard (Autumn)|
|9||Maghar||ਮੱਘਰ||30||14 November – 13 December||Sisiar (Winter)|
|10||Poh||ਪੋਹ||30||14 December – 12 January||Sisiar (Winter)|
|11||Magh||ਮਾਘ||30||13 January – 11 February||Himkar (late Winter/early Spring)|
|12||Phagun||ਫੱਗਣ||30/31||12 February – 13 March||Himkar (late Winter/early Spring)|
- "World Sikh News".
- Singh, Irwin Preet. "Mool Nanakshahi Calendar Plugs Bikrami Gaps".
- Purewal, Pal. "Gurbani and Nanakshahi Calendar" (PDF).
- Purewal, Pal. "Difference Between Nanakshahi and Bikrami Caldenar" (PDF).
- "The Chicago Tribune".
- "Parkash Purab Guru Gobind Singh Ji Gathers Momentum".
- "World Sikh News".
- "Adopt Mool Nanakshahi Calendar".
- J. Gordon Melton, Martin Baumann (2010) Religions of the World: A Comprehensive Encyclopedia of Beliefs and Practices, 2nd Edition [6 volumes]. ABC-Clio
- Kohli, Surindar Singh (1992) A Conceptual Encyclopaedia of Guru Granth Sahib.Manohar Publishers & Distributors