Guru Nanak Dev ji came here during his Third Udasi or travel in 1514 A.D. At that time the Siddhas (or yogis) who inhabited this place demanded a variety of foods from Guru ji.(At that time this place was known as Gorakhmatta which became Nanak Matta after the name of Sri Guru Nanak Dev Ji).
Guru Nanak Dev Ji preached:
Kirat Karo - to honestly earn, with hard work, by one's physical and mental effort, while accepting God's gifts and blessing. One is to speak the truth at all times and only fear God. Live a life of decency, high moral values and spirituality.
Naam Japo - meditation on God and reciting and chanting of God’s Name - Waheguru.The Sikh is to recite the Nitnem Bani daily in remembrance and grace of the Almighty.
Vand ke Chakko - Share and Consume together. The community or Sadh Sangat is an important part of Sikhism. One must be part of a community that is pursuing the values set out by the Sikh Gurus and every Sikh has to give in whatever way possible to the community. This spirit of Giving is an important message from Guru Nanak.
Yogis gave Guru Sahib a sesame seed and asked them to serve it to everyone and fulfill his preaching of "Vand ke Chakko". Guru Sahib understood their mischief and asked Bhai Mardana Ji to grind it and mix in milk and serve everyone. After everyone (Yogis) had drank milk Guru Sahib asked them that who had not got the sesame seed? The Yogis then got ashamed of their acts.
The Yogis then demanded to eat the variety of foods that they had just heard and read about in the holy scriptures.
On the instructions of Guru Sahib, Bhai Mardana climbed up a banyan tree and vigorously shook its branches. To the amazement of the yogis, a variety of foods fell down from the branches of the tree and satisfied the hunger of the yogis and Bhai Mardana Ji.
At the place where this event happened a Gurudwara was constructed thereafter known as Gurudwara Sri Bhandara Sahib Ji.
This Gurudwara is nearly 400 Mtrs from the Main Gurudwara in Nanak Matta Sahib.
(Bhandara - meaning free food for all who come to the place and demand it)