Gurudwara Sri Amb Sahib is situated in the district SAS nagar also known as Mohali. Seventh Guru, Sri Guru Har Rai Sahib ji visited this place to fullfill the wish of his devotee. Bhai Kuram ji of Village lambia, visited Amritsar Sahib to pay homage to Sri Guru Arjan Dev ji. Guru Arjan Dev ji's Darbar was going on everyone was paying gifts according to thier status and capabilities. Sangat from kabul gifted amb(mango) to Guru Sahib, Bhai kuram Singh felt bad on his part that he being from the land of amb could have also served Guru ji with amb, in the evening the Darbar was closed and every body was given prasaad of amb, Bhai Sahib didn't eat amb. In the morning Bhai Sahib presented the same amb to Guru Arjan Dev ji.

Guru ji called upon Bhai Sahib and asked that this amb was given to him in prasaad, then why did he had given back to him. Bhai Sahib politely said its true that i got this amb(mango) as prasaad but i being from the land of mangos felt right to present it to you. Then Guru Sahib said that you can have this as prasaad, we have felt ur feelings and we will have amb in our seventh life span. Seventh Guru Sri Harrai Sahib ji came to this place from kurukshetra in mid of december and asked Bhai Kuram ji for amb, Bhai Sahib politely said to Guru Sahib that in this season there are no amb, so i am unable to present the amb, but you are almighty you can do and get done what ever you want. Guru Sahib asked Bhai Sahib that trees are loaded with ambs. Bhai Sahib when looked up that the tree Guru Sahib was standing under was full of ambs, Bhai Sahib layed down on the feets of Guru Harrai Sahib ji and served everyone with amb in dec month.

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Bhai Kuram, a Lobana by caste, and a resident of village Lambian traveled to Amritsar to have a glimpse of Sri Guru Arjan Sahib Ji. It was season of mangoes (amb) and the court of the great Guru Arjan Sahib Ji was in place. The followers were giving their offerings. Followers from Kabul came with ripe mangoes.

Bhai Kuram felt sorry that he had came from the land of mangoes but had not thought to bring any to the Guru.

When the darbar ended that night the mangoes were distributed among the devotees as Parshad. All the followers went to their deras to retire. Bhai Kuram did not eat the mango given to him as parshad. The next day he got up in the morning, took his bath and carried the mango he had received as parshad and offered the same in darbar.

Guru Arjan called Bhai Kuram and said, "This mango was given to you as parshad but you have offered the same here". Bhai Kuram bowed before the Guru and answered, "Your highness, I came from the land of mangoes but did not bring any for you, so I kept this one for you." Guru Ji told Bhai Kuram not to worry and said he could eat his mango and promised that he would take his offering one day as the seventh Guru.

On the first day of Poh (mid-December), Sri Guru Har Rai Ji arrived at Mohali from Kurukshetra. Guru Har Rai found Bhai Kuram and reminded him that he had an offering of a mango to provide.

Bhai Kuram was suprised, in winter it was not the season for mango's, how could he provide one? Bhai Kuram, very politely, advised Guru Har Rai that it would not be possible to provide a mango.

Guru Har Rai who had been sitting under a mango tree asked Bhai Kuram to look up. The mango tree had mangoes that were ripe and were ready to eat. Guru Har Rai asked Bhai Kuram to distribute the mangoes to the Sangat.