Shravan Somwar Vrat, also spelt as Sawan Somvar Vrat, is highly auspicious vrat observed on Mondays during Shravan Maas in North India, Andhra Pradesh, and Karnataka. Shravan Somwar Vrat 2012 dates in North Indian Hindi panchang are: July 9, July 16, July 23 & July 30. In Marathi, Kannada, Gujarati, and Telugu Panchangam Shravana Somvar vrat 2012 dates are: July 23, July 30, August 6 & August 13.
In some places, Lord Shiva is worshipped along with Goddess Parvati, Lord Kartikeya, and Lord Vishnu. In South Indian regions, devotees consider the Kartik Somvar vrat (Mondays in Kartik Maas) highly auspicious than Sawan Somvar vrat.
In Goa and Konkan regions, Brahmins perform ‘Shiva Muth’ on Shravan Somvar.
Shravan Somvar vrat is observed with much gusto in Nepal. Thousands of women throng Pashupatinath temple, Kathmandu, to offer special pujas during Mondays in Shravan maas. Shravan Somvar vrat dates in 2012 as per Nepali Hindu calendar are – July 16, July 23, July 30, August 6 & August 13.