Who used the method of ranking coefficient for the first time in India in order to calculate agricultural productivity ?

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Q: 45 (MPPSC/2011)
Who used the method of ranking coefficient for the first time in India in order to calculate agricultural productivity ?

question_subject: 

History

question_exam: 

MPPSC

stats: 

0,2,9,5,4,2,0

keywords: 

{'productivity': [0, 0, 0, 1], 'coefficient': [0, 0, 1, 4], 'method': [9, 0, 1, 8], 'india': [8, 1, 7, 13]}