Answer:
Dear
Mukta,
We didn't
find any scientific evidence that papaya leaves can increase platelet
count.
Papaya
Leaf contains a remarkable protein-dissolving enzyme called papain.
Papain is a cysteine protease.
The doctors
KV Honn, P Cavanaugh, C Evens, JD Taylor, and BF Sloane made a research
in which the use of inhibitors of cysteine proteinases resulted in
parallel inhibition of B16 amelanotic melanoma-induced platelet aggregation
and of a cathepsin B activity.
The antimetastatic
agent prostacyclin inhibited platelet aggregation induced by the tumor
cells and by papain, a cathepsin B-mimicking agent.
You can
see more information at : Platelet
count