Budh Pujan, a vrat dedicated to Lord Budha (Planet Mercury) of Navagrahas, is observed on Budhwar (Wednesdays) in Shravan Month. In 2011, Bidh Pujan dates are: August 3, 10, 17, and August 24. It is mainly observed in Maharashtra and some places in Karnataka and Gujarat.
Those who are suffering from the Budh graha dosh, can perform Budh Pujan in Shravan month to get rid of the Budha graha dosh. Read Budha Graha Gayatri Mantra here.Budh Pujan in Shravan Month