Gurupushyamrut Yog (Guru Pushya Nakshatra Yog) in October 2011 date is October 20, Thursday. It is even more auspicious as it falls during Diwali festival Pushya Nakshatra. Guru Pushyamrit is an auspicious period which falls on Thursday and coincides with Pushya Nakshatra. Time of Guru Pushya Yoga is: begins at 10.46 am on 20 Oct and continues till the sunrise on 21 October.
Many auspicious events such as Grihpravesh (housewarming ceremonies), Vidyarambham (Aksharabhyasam), etc.. are celebrated during Guru Pushya Nakshatra. Pushya Nakshatra during Diwali is even more auspicious to start new ventures, buy gold, silver, and any other household items.

Manishankar
Apr 18. 2013
what sadana must be done on gurupushyamrut