    Sentence :4:-Why:.is it so that a very:  few. officers. make it-to ranks above  colonel: ‘and equivalents ‘in: Indian:  Military, Sérvices?.. And ‘thosé who: do.  are mdinly from-NDA:    Sentence: 2::Why is'it-so that/a.vety  few: officers. make ‘it, to. ranks: above:  colonel. and:: equivalents. “in, “Indian  Military Services? And those whe de  are mainly from NDA?