A birthday is the anniversary of the birth of a person or institute. Birthday's of people are celebrated in numerous cultures often with birthday gifts, birthday cards and birthday party.
Many religions celebrate the birthday with different ways. But mostly an individual's birthday is celebrated by a party where a specially made cake, usually decorated with lettering the person's age is present.
The celebration involves inviting guests, candle blowing ceremony followed by dinnew. Sometimes entertainment activities like dance, music, party, magic shows etc are also organized.