Shunted out from the Ministry of Finance as its top bureaucrat, senior IAS officer Subhash Chandra Garg has apparently opted for voluntary retirement. In bureaucratic shake-up on Wednesday, he was shifted to the Ministry of Power as its Secretary. Top sources in the government said Mr. Garg’s move comes almost 15 months before his superannuation in October 2020. Mr. Garg was designated as Finance Secretary in March last after the superannuation of A.N. In the Finance Ministry, the most senior officer among the five Secretaries is designated as the Finance Secretary.