GUWAHATI, May 15: BB Mishra, an IPS officer of 1988 batch, joined as the new principal chief security commissioner of Northeast Frontier Railway recently. Prior to this he was posted in Allahabad as Inspector General / Railway Electrification. Born in 1963, Mishra has vast experience of working in various posts throughout India in various capabilities. He is also a recipient of Indian Police Medal in 2011. He took management training in Malayasia and Singapore and also participated in various security related training programme in Nation Police Academy, ISB etc.