Most people do not know this by Ali Akbar Khan and his sweet sister Annapurna's father 'Baba Allauddin Khan' (1862 – 6 September 1972) were the greatest admirers of Babu Kishan's Grandfather ' Baba Nabani Das Khyapa Baul'. 1895 - 1969). Allauddin Khan was one of the first Indian Classical multi instrumentalist, he played Sitar, Sarod, Tabla, Harmonium, Flute, Sarangi, Shenai and more. He was a very mystical person and a Music Composer a beloved family friend to Babu Kishan's family.
One time Allaudin Khan, asked Nabani, 'can I take your Ektara because it is magical and when you play you take me to some other world". Nabani said, "I can give you anything but not my Ektara because that is my first love". Somehow, somewhere Allauddin touched and played Nabani's Ekatar and felt the mystical vibration and said he found thousands of stories, lyrics, mystical vibrations and said, Nabani is a complete musician and a mystic sadhaka and found he now had a mystical Sadhaka friend. He felt Nabani's smile was unlimited worth the world.
A musicals persons first love is their instrument. Nabani promised to make him another Ektara and gave it to Allaudin but he refused because he wanted Nabanis Ektara because it had a vibration that shocked him to the core.
Nabani and Allaudin knew each other very well and respected each other, that is why Ali Akbar Khan, Ravi Shankar, Annapurna (who is Ravi Shankar's first wife) Hari Prasad Chaurasia, Allla Rakha father of Zakir Hussain all top Classical Musicians of Bengal had a great respect for Nabani Das Khyapa Baul and his family. A many decades relationship with Purna Das Baula and Babu Kishan. They traveled the world many times together.
The Das family home became a Musical Cultural Cinema Political and Guru Hub in Calcutta. This started with Nabani Das Khyapa Baul who many great poets, authors, Music Composers, Singers, Gurus, Tantrics who admired Nabani Das Khyapa Baul and his singing for Nehru during the Freedom Fight of India. Nehru and Nabani were great friends and Nabani would sing all over India before Nehru gave his speeches.
This Political connection continued with Indira Gandhi, Sanjay, and Rajiv Gandhi.
The Das house on Purna Das Baul Road in Calcutta was also, a Cultural Hub due to the work Babu Kishan did in promoting his father.