Shravan Shanivar is dedicated to Lord Hanuman Puja. This vrat is also known as Ashwattha Maruti Poojan in Maharashtra and some parts of Gujarat. Ashwattha Maruti Poojan 2016 dates are – August 6, August 13, August 20 and August 27.
Usually Shanivar or Saturday is dedicated to Hanuman Puja and in Shravan month Lord Hanuman is also worshipped along with Lord Shiva because he is also known as Rudravar (incarnation of Lord Shiva). Along with Hanuman Ashwatha Vriksh (Banyan tree) is also worshipped on Saturdays in Sravan mahina.
Ashwath Vriksh is considered as the ‘sarva devata vriksh’, where all the Gods live. Ashwatha Vriksha Stotra defines the above in detail. It is believed that in the roots of Ashwath Lord Brahma lives, in the stem of the tree Lord Vishnu lives, and on the peak of the tree Lord Shiva lives. This is the reason why Ashwath vriksh is also offered prayers in Sravan month.
Ashwattha Maruti Poojan 2015 dates were – August 15, August 22, August 29, September 5 and September 12.
Ashwattha Maruti Poojan 2014 dates were – August 2, August 9, August 16 and August 23.
Ashwattha Maruti Poojan 2013 dates were – August 10, August 17, August 24 and August 31.
Ashwattha Maruti Poojan 2012 dates are – July 21, July 28, August 4 & August 11.