How is the income of a taxpayer classified under the I-T Act?

How is the income of a taxpayer classified under the I-T Act?

Section 14 of the I-T Act has classified the taxpayer's income under five different heads of income, 

  1.  Salaries
  2.  Income from house property
  3.  Profits and gains of business or profession
  4.  Capital gains
  5.  Income from other sources