As Indianmandarins had reported on 07 April 2016 (Weblink below) Arunish Chawla (IAS:1992:BH) has been appointed as Minister (Economic) in the Economic Wing, Embassy of India in Washington DC (USA).
Currently he serves as Joint Secretary, Department of Expenditure in the Ministry of Finance. The post was advertised in June 2015. The Govt of Bihar had gave its NoC recently only.
Web-Link: (News dated 07 April 2016)
Chawla tipped for Washington posting ?
http://www.indianmandarins.com/chawla-tipped-for-washington-posting/