Today is Shravan Purnima (13 August 2011). It is the Full Moon in Shravan month as per all lunar calendars of India. Shravan Purnima marks the end of Shravan month in North Indian Hindi calendars and the following day begins Bhadrapad Month. Many important festivals & rituals are celebrated on this day.
Raksha Bandhan or Rakhi Festival is the important festival celebrated on Shravan Purnima.
This is the best day to start Veda adhayana (learning Vedas) as it is Hayagriva Jayanti (birthday of Lord Hayagriva), who is the protector Vedas. Lord Hayagriva is half-horse & half-human incarnation of Lord Vishnu who is also considered as Aadi Guru.
Yajurveda & Rigveda Upakarma or Avani Avittam is observed on this day in Tamil Nadu, Kerala, Karnataka & Andhra Pradesh. Hence it is also known as Janai Purnima & Jandhyala Purnima. Rig, Shukla Yajurveda Taittariya Shravani is observed in Maharashtra & some other parts of North India on Shravan Purnima.
Santoshi Mata Jayanti is also observed on this day.
Nariyal Purnima is celebrated among the people of Maharashtra and Konkan regions of Goa to thank the Sea God for his support for their happy living. Kajri or Kajli Purnima is celebrated with similar gusto in North India. Pavitropana is a popular Vaishnavite festival celebrated in Gujarat on Shravan Purnima.
Gamha Purnima or Balabhadra Puja is observed in Orissa on Shravan purnima day.
Amarnath Yatra ends on this day. It is the toughest pilgrimate in Hinduism which begins at the ending of June every year and concludes on Shravan Purnima day.
Jhulan Yatra also concludes on this day. Jhulan yatra is an important festival dedicated to Lord Sri Krishna (Jagannatha).
Gai Jatra or the festival of cows is celebrated in Nepal on this day.
Shravan Purnima also marks the end of Shravani Mela, a month-long fair dedicated to Lord Shiva, in Deoghar Baba Baidyanath Dham.
Shravan Purnima is an auspicious day to perform Mahalakshmi Puja, Satyanarayana Puja, Saraswati Puja & Gayatri Puja.