Srivastava, a 1978 batch officer of Karnataka cadre, is currently Special Secretary and Financial Adviser in the Ministry of External Affairs.
Zaidi, a 1976 batch UP cadre IAS officer, who holds the post of aviation secretary at present, is retiring on July 31.
The Appointments Committee of the Cabinet (ACC) has also approved the appointment of Arvind Mayaram, a 1978 batch IAS officer of Rajasthan cadre, presently Special Secretary, and Financial Adviser, Department of Rural Development, Ministry of Rural Development as Secretary, Department of Economic Affairs, Ministry of Finance.
Mayaram will take place of R Gopalan, a 1976 batch IAS officer of Tamil Nadu cadre, who retires on July 31, 2012.