A return of income is a defined form which can list out the particulars of income and the taxes paid on the same by an individual, firm or organisation in a financial year. This in turn can be presented to the Income Tax Department. There are differing forms for incomes of different status and nature and they are readily available on the online portal of the Income Tax Department of India.
There are currently nine different forms available for filing of income tax returns. They go from ITR-1 to ITR-7 and also include the ITR-4S and ITR-V.