"It is a matter of pride to honour freedom fighters, who have played important roles in the freedom movement of our country and fight against the colonial rule," Mukherjee said in his address.
He said: "I pay respect to all freedom fighters who are alive and pay homage to those who are dead. The nation cannot forget the important contributions made by freedom fighters in the country's freedom movement."
Champaran is the laboratory of freedom movement of Satyagraha by Gandhi," he added.
The year-long celebrations to mark the 100th year of Mahatma Gandhi's first major resistance against British rule, popularly known as the Champaran Satyagraha, began last week in Bihar.