He will succeed Rajiv Mehrishi, who completes his term on August 30.
A total of 16 secretaries have been appointed to various central government departments. The government has changed portfolios of a few secretaries in this rejig.
Gauba, a 1982 batch IAS officer of Jharkhand cadre, will take over as Officer on Special Duty (OSD) in the Union home ministry with immediate effect, an order issued by the Department of Personnel and Training (DoPT) said.
He has served in the home ministry as joint and additional secretaries where he looked after crucial Naxal division, among other responsibilities.
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Culture Secretary N K Sinha will be the new Information and Broadcasting Secretary in place of Ajay Mittal, who has been appointed as the DoPT secretary. DoPT Secretary B P Sharma retires this month-end.
Senior bureaucrat Subhash C Garg, Executive Director in World Bank, will be the new Department of Economic Affairs Secretary, a post that had fallen vacant after the retirement of Shaktikanta Das.
Aruna Sundararajan will be the new Telecom Secretary. She is at present the Secretary, Ministry of Electronics and Information Technology (MeitY).
NHAI chief Yudhvir Singh Malik has been appointed the Road, Transport and Highways Secretary. Deepak Kumar, at present the Director General Employee's State Insurance Corporation (ESIC) will be the new chairman of National Highways Authority of India (NHAI).
Ajay Kumar Bhalla will be the new Power Secretary. He is at present the Director General of Foreign Trade.
Bhalla, a 1984 batch IAS officer, will take over the new charge from P K Pujari, who retires on June 30.
Food Processing Industries Secretary Avinash Kumar Srivastava will be the Secretary, Department of Consumer Affairs in place of Jagdish Prasad Meena who has been appointed in his place.
Anand Kumar, the managing director of the newly-created National Highways Infrastructure Development Corporation Ltd, will replace Kapoor in the Ministry of New and Renewal Energy.
Ravi Kant, a 1984 batch IAS officer of Bihar cadre, will be the new Shipping Secretary. He has been appointed in place of Rajive Kumar, who has been recently sent back to Uttar Pradesh cadre before completion of his tenure.
Kant is at present the Additional Secretary in Department of Defence.
Border Management Secretary Sanjeevanee Kutty has been appointed Secretary, Department of Ex-Servicemen Welfare in Defence Ministry. She will take over from Prabhudayal Meena, who retires on July 31.
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