Answer:

Introduction:
The question is about a person named Rajkumar Shukla, who is speaking to someone and expressing his desire for that person to come to his district, Champaran. We need to identify who Rajkumar Shukla was speaking to.

Identifying the person:
To find out whom Rajkumar Shukla was speaking to, we need to analyze the context provided in the question. The clue lies in the location mentioned by Rajkumar Shukla, which is Champaran. Champaran is a district in the Indian state of Bihar, which is historically significant for being the site of Mahatma Gandhi's first Satyagraha (nonviolent resistance) movement in India.

Mahatma Gandhi:
Mahatma Gandhi was a prominent leader of the Indian independence movement against British rule. He played a crucial role in India's struggle for freedom through his philosophy of nonviolence and civil disobedience. Gandhi's involvement in the Champaran Satyagraha had a significant impact on the movement and established him as a leader in the fight for social justice.

Rajkumar Shukla's association with Mahatma Gandhi:
Rajkumar Shukla was a farmer from Champaran who played a pivotal role in inviting Mahatma Gandhi to Champaran to address the issues faced by the indigo farmers. Shukla's persistence and determination convinced Gandhi to visit Champaran and witness the plight of the farmers firsthand. Gandhi's visit ultimately led to the Champaran Satyagraha and brought significant attention to the problems faced by the indigo farmers.

Conclusion:
Based on the historical context provided and the association between Rajkumar Shukla and Mahatma Gandhi in the Champaran Satyagraha, it can be concluded that Rajkumar Shukla was speaking to Mahatma Gandhi when he expressed his desire for Gandhi to come to his district, Champaran. Therefore, the correct answer is option 'A' - Mahatma Gandhi.