Jambhul Aakhyan is a popular folk tale from the Indian state of Maharashtra.
[1][2] The tale is not a part of the Sanskrit epic of Mahabharata[3] During 13 years of exile, Draupadi once picks a jambhul (jamun) fruit.
When she asks how it is possible, Krishna says that if she and her husband reveal their deepest secret, the fruit will attach itself.
Then one by one Pandavas reveal their deepest secrets and Draupadi confesses her feelings for Karna and so the fruit was reattached.
[5] Jambhul Akhyan is popularly performed by Indian folk singer Vitthal Umap.