Is Reserve Bank of India Governor Raghuram Rajan on his way out? Earlier this month, a comment to a reporter by the head of India’s central bank drew fire from Prime Minister Narendra Modi’s party. Mr. Rajan played down talk of India as a bright spot in the global economy by citing an Indian proverb: “In the land of the blind, the one-eyed man is king.”

Commerce Minister Nirmala Sitharaman quickly declared that she “may not be happy” with Mr. Rajan’s choice of words. Junior Finance Minister Jayant Sinha echoed his colleague’s...