The Parts I need to total up

At the end of the year, I need to work out my Gross Total Income. This is nothing but a sum total of my incomes under 5 categories below.

Salaries

House Property

Business Gains and Profession

Capital Gains

Other Sources

So, I just go about finding out my Income under the category or categories out of above that applies /apply to me, then sum up each category’s  income to arrive at Total Income.