Singh is presently Additional Secretary in the department.
He is appointed against the existing vacancy till the date of his retirement, i.E. September 30, this year.
Thereafter, he will continue in the post for a period of one year with effect from October 1, 2014, said an order issued by the Appointments Committee of Cabinet (ACC).
ACC has also approved appointment of SS Chahar as Member Secretary, Law Commission of India. Chahar is Additional Secretary in the Department of Legal Affairs. He will take over from NL Meena, who superannuates on August 31.