12 September 2011 is Purnima or Full Moon day in Hindu calendar. It is known as Bhadrapad Purnima. It has begun on 11 September at 1.10 PM and will end at 2.57 pm on 12 Sep, 2011, today. Bhadrapad Purnima is a very auspicious day to perform Uma Maheshwara vrata, Satyanarayana swamy Vratham, Lakshmi Puja & Lalita Sahasranama parayana.
Ambaji Mela is celebrated in Ambaji Temple of Gujarat on Bhadarvi Poonam. Bhagvat Saptah, a week dedicated to Srimad Bhagvad, ends on this day.
Bhadrapad Purnima marks the end of Bhadrapad month in North Indian Hindi calendar. The following day is the first day of Ashwin month in this calendar. It also marks the beginning of Mahalaya Paksha or Pitru Paksha in all Hindu calendars.