Mool Nanakshahi Calendar 2025. It is based on “barah maha” (twelve months). Mool nanakshahi calendar (ns) combines the original nanakshahi calendar as approved and introduced by sgpc in 1999 (commemorating 300th anniversary of khalsa sajna divas);
The official sikh calendar is the nanakshahi calendar. The complete monthly details of the nanakshahi calendar for the year 2025 are given in the next sections of this page.