One dumb fellow in this post mentioned that when you apply force, khukri can be flushed with some mechanism. In real it cannot. Once I tried flushing a fruit, an orange and that too outer layer of oranges. The whole drainage system was jammed and we had to call a plumber. And khukri is impossible.
CBI cannot be always right and no case can be proved on nacro test. sometimes with nacro test, there can be forceful confessions. Do you think based on nacro test, court will give punishment to krishna. This is India. Here even sajnay dutt is roaming free after being convicted for a severe crime under TADA and here for one girl murder and base of nacro test. CBI and BCCI .. all are dumb limbos