Most scientists spend years in classrooms and laboratories, but Kalimullah Khan built his legacy in a mango orchard. Born on January 1, 1945, in Malihabad, Uttar Pradesh, India’s famed mango belt, Kalimullah was
never expected to become a horticultural icon.
He failed Class 7, dropped out of school, and began spending his days in his family’s orchard. But what he lacked in formal education, he made up for with instinct, patience, and an extraordinary idea: could one tree grow hundreds of different mangoes?
That question made him one of India’s most celebrated horticulturists. Known as the ‘Mango Man of India’, Kalimullah Khan is the creator of one of the world’s most remarkable living experiments. This 125-year-old mango tree bears more than 300 varieties of mangoes, for which he has also received a Padma Shri award in 2008.
How Did It All Begin?
Kalimullah’s journey began in childhood, among the mango orchards his family had nurtured for generations. After his grandfather passed away, he took over the responsibility of tending the orchard and gradually discovered his true calling.
In 1957, he attempted his first ambitious experiment—trying to grow seven varieties of mangoes on a single tree. Nature, however, had other plans. Severe floods destroyed the tree.
But instead of giving up, he treated failure as a lesson. The setback taught him more about soil, flooding, and plant survival—and pushed him deeper into the science of grafting.
The Technique Behind The Miracle
At the heart of Kalimullah Khan’s success lies grafting, an ancient agricultural technique in which branches from one plant are attached to the rootstock of another so they grow as one.
Over decades of trial and error, he perfected this art. In 1987, he began grafting multiple mango varieties onto a single old tree spread across his 22-acre orchard in Malihabad. Slowly, branch by branch, the tree transformed into a botanical marvel.
Today, the nearly nine-metre-tall tree bears over 300 distinct mango varieties, each retaining its own flavour, colour, aroma, and texture—all from a single root system.
A Tree Unlike Any Other
The tree features some of India’s most loved mangoes, including Alphonso, Langra, Kesar, Dasheri and Chausa. It also carries unique hybrids developed by Kalimullah and his family, including Dushehri Kalim, a cross between Dushehri and Sinduri.
Some varieties have been given unusual names inspired by public figures and personalities, reflecting his creativity and personal connection to his work.
Recognition Without A Degree
Though he never earned a formal degree, Kalimullah Khan’s work has been recognised globally. Former President K R Narayanan once described him as a scientist without a degree, after he donated a special mango tree bearing 54 varieties to the Rashtrapati Bhavan Mughal Gardens in New Delhi.
His record-breaking tree, known as ‘Al-Muqarrar’, earned him a place in the Limca Book of Records.
Delegations from countries including the United States, Germany, the United Kingdom, Thailand, Saudi Arabia and Jamaica have visited his orchard to study his methods.
Despite international recognition, Kalimullah Khan has remained deeply grounded.
For years, even after becoming famous, he continued working quietly in his orchard, dedicating himself to the soil and the trees that shaped his life.
Today, his son helps maintain the family’s 22-acre orchard, carefully monitoring weather conditions, pest control, and irrigation to preserve the legendary tree.
At 81, Kalimullah Khan’s orchard is not just farmland; it is a living laboratory, a place where tradition meets innovation.
His story proves that genius does not always come from textbooks. Sometimes, it grows slowly, branch by branch, season after season, on an ancient mango tree in the heart of Uttar Pradesh.
