Choudhary, a 1977-batch officer of Bihar cadre, is now serving as the Special Director General (Airports) in CISF at its headquarters here.
He will hold the top SSB post till April 2014 when he is due for retirement.
The post of SSB DG was being held in additional capacity by CRPF chief Pranay Sahay for more than a fortnight.
Choudhary has served in various capacities in Bihar and and also had a stint in the Intelligence Bureau (IB) where he looked after various assignments including the important Jammu and Kashmir desk.
