New Delhi, Jan. 19 -- Akriti Khatri's angular body darts from one room to another. She's either on the phone, attending to a client, or asking a young assistant to do background research on a potential target. Khatri is 5ft, 7 inches tall and is wearing a raven-hued knee-length coat pinned at the waist. She doesn't carry the reserve one would expect investigators to harbour-she's not guarded, or suspicious. Rather, she is warm and amicable, but also oddly distant. Khatri meets me on a cold January afternoon with a wry smile, and is willing to answer most of my questions. She barely pauses between sentences to catch her breath....