Answer: Punjab
Notes: Baisakhi is a spring harvest festival celebrated primarily in northern parts of India. It marks the start of the month of Vaisakh. Vaisakhi is a spring festival which happens in the month of April every year. It is a day to celebrate 1699 - the year when Sikhism was born as a collective faith. Vaisakhi has been a harvest festival in Punjab for a long time, even before it became so important to Sikhs.
