How do i claim home loan interest deduction in itr 2?

I am trying to fill ITR-2 myself for the first time and have few doubts. How do I claim deduction of the amount paid towards home loan interest in ITR-2? If I put the amount in schedule-HP in the cell for interest payable for borrowed capital (h), things are coming corectly but ultimately it is not getting deducted from my salary amount, rather in part-B TI-TTI, it is shown to be carried forward to next year. Why is it so? I thought this amount is to be deducted from my net salary. second doubt: Exactly how do I claim deduction for professional tax from salary? Please indicate the proper schedule and the cell for this. Thanks for your suggestions.