Name the man who in the 1930s raised a volunteer corps of about 100,000 pathans, known as ‘Khudai Khidmatgars’ or Servants of God and affiliated it to the Congress?

Name the man who in the 1930s raised a volunteer corps of about 100,000 pathans, known as ‘Khudai Khidmatgars’ or Servants of God and affiliated it to the Congress?