Today, 29 September 2012 is Ganesh Visarjan (Ganesh immersion, Vinayaka Nimajjanam). Lord Ganesha who has been getting worshipped for last 11 days will be immersed in water after performing Final puja.
Ganesh Utsav which has begun with Ganesh Chaturthi will end with the event of Ganesh Udwasan (Ganpati Visarjan) on Anant Chaturdasi. Anant Chaturdasi falls on 14th day of bright half of Bhadrapad Month as per Hindu calendar..
Ganesh Visarjan is celebrated in grand scale in Mumbai, Pune, Hyderabad, Nagpur, Solapur, Surat, Ahmedabad, etc..
Read on this article for Ganesh Visarjan Mantras, what to do during Ganesha Nimajjanam..
Read the reasons behind the immersion of Ganesha in water..