Tranny fluid leak??

[pavanbabut]

As the title says, my tranny fluid is leaking slowly. Now its about at the low level on the dip stick, its been almost 3 years I filled it up. The fluid is clean and like new, but somewhere its leaking slowly. I see smoke coming out of the hood after sometime of driving. We noticed some leak at crank seal and replaced it tightened the oil filter, so I am sure it doesnt leak from there any more. P/S fluid, maybe??, but its level is almost same all the time.

Any suggestions...??

-Pavan.