Every individual/HUF is responsible for filing the income tax return if their total income exceeds the basic exemption limit without giving effect to the specified exemptions and deductions.
If an individual is a resident and ordinary resident in India, he/she shall file his ITR, even if his income does not exceed the maximum exemption limit, if he/she:
Is the beneficial owner of any asset (including any financial interest in any entity) located outside India,
Has signing authority in any overseas account.
Is a beneficiary of any asset (including any financial interest in any entity) located outside India.
Deposits more than Rs 1 crore in current account (one or more current accounts maintained with a banking company or a co-operative bank)
If foreign travel expense incurred is more than Rs 2 lakh either for himself or for any other person.
If electricity bill is more than Rs 1 lakh during the year.
For taxpayers like companies, partnership firms, local authorities, there is no basic exemption limit for filing ITR. Such taxpayers must mandatorily file ITR for every financial year.