Fahim ,
I tell u a simple but effective ans for this :
" (Do not be Specific) Say i myself fullfilling my Goals, doing the tasks set by my mentors & seniors - Quite sstisfactorily & of course achieving good ratings and being a role model for my juniors in the organization.... "
This is not too specific neither too diplomatic and touches the core professional & yet the softer aspects of work-life.......& should work fine for u. At least when i take the interviews i do expect or accept similar answers !
Regards
Ng