Tax on LTCG if total income less than 10 lakhs?

In HUF account, total income is 6.5 lakhs (1 lakh interest and 5.5 lakhs LTCG post indexation). What will be the tax if no 80C deduction? Will entire 5.5 lakhs get taxed at 20% or will the assesse get to use the tax slabs in calculating tax on total income of 6.5 lakhs?