Ekadashi is celebrated on the 11th day of the Hindu Calendar. It is said that keeping fast on this day, awakes all the five senses of human beings. Ekadashi fast comes twice in a month; it comes first in the duration of Shukla Paksha (bright lunar fortnight) and then in Krishna Paksha (dark lunar fortnight). Lord Vishnu’s devotees keep fast on the day of Ekadashi.
Before going in more detail, let’s first know the legend behind the origin of Ekadashi. So let’s make Ekadashi 2015 more significant by knowing the story behind it.

Legend Of Ekadashi
As per the legend, once Lord Vishnu was in Yoga Nidra. At that time, a demon named Murdanav, came and challenged Lord Vishnu for a fight. As Lord Vishnu was in Yoga Nidra, a damsel appeared from his Ekadash Indri (eleventh sense). As soon as Murdanav had a glimpse of the damsel, he got so attracted that he wanted to marry her. But, the damsel put a condition that first he would have to fight with her. Murdanav became so passionate after seeing the damsel that he agreed to have a fight. In the fight, the demon got killed by the damsel. Lord Vishnu became happy and got pleased by the firm dedication of the damsel. He granted her a boon that she will be named as Ekadashi, as she appeared from his Ekadash Indri. Goddess Ekadashi told Lord Vishnu that she wants people to keep fast on the day of Ekadashi. Also, by observing this fast, people will get free from all evils and sins. Lord Vishnu granted her the boon and said that if anyone would keep a fast on Ekadashi, he/she would get Moksha (salvation).

On this day, people keep Ekadashi fast and do not eat any cereal or grain, as it is believed that they become infected by sin on this day.

Below mentioned is the table of Ekadashi dates in 2015:
Ekadashi 2015 Dates Table