Detailed Explanation:

Vallabhbhai Patel successfully led the Bardoli Satyagraha in 1928 against a 30% hike in land revenue imposed by the British in Gujarat. The non-violent movement forced the government to withdraw the increase and earned Patel the title "Sardar".

Motilal Nehru, J.B. Kripalani, and Jawaharlal Nehru were prominent freedom fighters but were not associated with leading the Bardoli movement.

Therefore, Vallabhbhai Patel led this landmark peasant satyagraha, making Option 4 the correct answer.