As per what I observed in last year's JoSAA counselling, there is no "female only merit list". Basically, you do not get to know your rank in girls ( until and unless you have topped, of course)

But after you apply and fill in your choices you get seats allotted in girl only supernumerary quota.

Also, in top iits the rank at which a girl gets a seat using the above mentioned quota is exactly double of what a guy gets at, as per my analysis.