Satbir Singh Bedi | 09 Aug 2013

According to the Shairah, Muslims are to celebrate only two festivals, Eid-ul-Fitr and Eid-ul-Adha.  Eid-ul-Fitr marks the end of the holy month of Ramadan in which the Holy Quran was revealed as stated in the Quran itself.  The following verse is relevant:
2.185. The month of Ramadan in which was revealed the Qur'an, a guidance for mankind and clear proofs for the guidance and the criterion (between right and wrong). So whoever of you sights (the crescent on the first night of) the month (of Ramadan i.e. is present at his home), he must observe Saum (fasts) that month, and whoever is ill or on a journey, the same number [of days which one did not observe Saum (fasts) must be made up] from other days. Allah intends for you ease, and He does not want to make things difficult for you. (He wants that you) must complete the same number (of days), and that you must magnify Allah [i.e. to say Takbir (Allahu-Akbar; Allah is the Most Great) on seeing the crescent of the months of Ramadan and Shawwal] for having guided you so that you may be grateful to Him.
So after keeping the fasts in the Holy month of Ramadan, Muslims do not keep fast on the day of Eid-ul-Fitr but celebrate it with sweets and wearing new clothes.  Prayer is performed at a common place on this day and all the Muslims greet each other.  Since, it marks the end of the revelation of the Quran, it is celebrated with great joy and the month of Shawwal follows which is also a holy month for the Muslims.  So, all Muslims may accept my greetings.