Baisakhi The Emergence of Khalsa in the year 1699. It falls on the first day of the Baisakh month in the solar Nanakshahi calendar, which corresponds to April 14 in the Gregorian calendar. Bihar: the Sun-god Surya is honoured. Assam: Celebrated as Rongali Bihu Bengal and Tripura: Pohela Boishakh Tamil Nadu: Celebrated as Puthandu Kerela: Celebrated as Vishu (or Vaishakhi) Kumaon Region, Uttarakhand: Bikhauti Orissa: Maha Vishuba Sankranti Sinhalese New Year festival in Sri Lanka | 
