Tithi in Hindu Calendar on August 13, 2011 – Purnima or full moon day in Hindu calendar and Panchang in all places. It is Purnima tithi till 10:44 PM on August 13, 2011. After 10:44 PM it is Krishna Paksha Pratipada or first day of the waning phase of moon. All time based on India Standard Time.
Nakshatra – Shravan or Sravana or Thiruonam Nakshatra till 6:09 PM on August 13, 2011. Afterwards it is Dhanishta or Sravishta or Avittam Nakshatram.
Rashi or Moon Sign – Makar Rasi.
Festivals, Vrat and Auspicious days – Raksha Bandhan, Narali Purnima, Rig Vedi Upakarma, Yajur Vedi Upakarma, Lav Kush Jayanti. Avani Avittam
Shravan Purnima or the full moon day in Shravan month in calendars followed in Goa, Gujarat,
Maharashtra, Karnataka and Andhra Pradesh.
Shravan Purnima or the full moon day in Shravan month in calendars followed in Delhi, Rajasthan, Uttar Pradesh, Bihar, Jharkhand, Madhya Pradesh, Haryana, Punjab, Himachal Pradesh, Uttarakhand, Chhattisgarh, Orissa and Jammu and Kashmir.
28th day of Aadi Masam in Tamil Calendar followed in Tamil Nadu.
28th day of Karkidaka Masam in Malayalam Calendar in Kerala.
27th day of Shraban month in Bengali Calendar.