How to get Indexpath of cell in UITableView while clicking on Custom accessory Button?

I have UITableView.In that i have created custom cell with accessory button.Now by clicking on accessory button i want to create another view with edit cell functionality.For that how do i find the index path of that cell?and how do i pass the vales of that cell?

How do i call following method:

 - (void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath