Sinha, a Deputy Inspector General-level officer in CBI, is heading the Multi-Disciplinary Monitoring Agency (MDMA) Zone of the agency. MDMA is probing Gandhi's assassination.
He is a 1996-batch IPS officer of Jammu and Kashmir cadre.
Besides Sinha, three other IPS officers -- Navin Kumar Singh, Shankha Brata Bagchi and Bhanu Bhaskar -- have also been promoted as Joint Director in the CBI, an order issued by the Department of Personnel and Training said.
All of them are 1996-batch IPS officers.
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