, ▁R ural ▁Development , ▁PR Is , ▁Agricult ure ▁& ▁Food ) ▁or ▁Cl uster ▁ 2 ▁( E ner gy , ▁Power , ▁Indust ry ▁& ▁Com merce , ▁Transport , ▁Urban ▁Development , ▁Environment , ▁S & T , ▁Information ▁Technology ▁Public ▁Works , ▁Law ▁& ▁Order , ▁Art ▁& ▁Culture ) ▁ ▁The ▁equivalent ▁officers ▁at ▁the ▁Central ▁level ▁are ▁Princi pal ▁Direct ors ▁( PD s ) ▁or ▁Direct ors ▁General ▁( D s G ). ▁The ▁P D s , ▁D s G , ▁As G ▁and ▁P As G ▁report ▁to ▁Add itional ▁Deput y ▁C AG ▁ ▁( also ▁called ▁A DA I , ▁for ▁historical ▁reasons ) ▁or ▁Deput y ▁C AG ▁( called ▁DA I , ▁again ▁for ▁historical ▁reasons ). ▁The ▁Deput y ▁C AG s ▁are ▁the ▁highest - rank ed ▁officers ▁in ▁the ▁service . ▁ ▁After ▁training , ▁the ▁Officer ▁Tra ine es ▁are ▁posted ▁as ▁Ass istant ▁Account ant ▁General ▁Ass istant ▁Direct ors ▁a ▁Junior ▁Gra de ▁Group ▁A ▁later ▁promoted ▁to ▁Deput y ▁Account ants ▁General ▁( D As G ) ▁or ▁Deput y ▁Direct ors ▁( DD s ) ▁a ▁Senior ▁time ▁scale . ▁Sub sequ ent ▁to ▁their ▁promotion , ▁they ▁become ▁Senior ▁Deput y ▁Account ants ▁General ▁( S r . D As G ) ▁or ▁Direct ors . ▁All ▁officers ▁below ▁the ▁rank ▁of ▁AG / PD ▁are ▁also ▁called ▁Group ▁Offic ers ▁as ▁they ▁are ▁generally ▁in ▁charge ▁of ▁a ▁group