1Enakshi Ganguly = ""Ganesha Chaturthi is the Hindu festival celebrated in honour of the god Ganesha, the elephant-headed. The festival, also known as Vinayaka Chaturthi, is observed in the Hindu calendar month of Bhaadrapada, starting on the shukla chaturthi."Source: https://en.wikipedia.org/wiki/Ganesh_ChaturthiGanesh Chaturthi is on September 17th 2015 (this year)."
2Enakshi Ganguly = ""It is believed that one should not sight the moon on Ganesh Chaturthi. Sighting moon on Ganesh Chaturthi creates Mithya Dosham or Mithya Kalank (कलंक) which means false accusation of stealing something. As per Puranic legends, Lord Krishna was falsely accused of stealing precious jewel named Syamantaka. After seeing plights of Lord Krishna, Sage Narada informed that Lord Krishna sighted moon on the day of Bhadrapada Shukla Chaturthi and because of that he has been cursed with Mithya Dosha. Sage Narada further informed Lord Krishna that God Chandra has been cursed by Lord Ganesha that anyone who sighted moon on Shukla Chaturthi during Bhadrapada month would be cursed with Mithya Dosha and would be tainted and dishonoured in the society. On the advice of sage Narada Lord Krishna observed Ganesha Chaturthi fasting to get rid of Mithya Dosha."Source: http://www.drikpanchang.com/festivals/ganesh-chaturthi/ganesh-chaturthi-date-time.html"