Yes, you should file an income tax return even if you have incurred a loss during the financial year.
Filing a return will help you carry forward the losses, which can be adjusted against future income and reduce your tax liability.
Additionally, it is also a legal requirement for taxpayers with certain levels of income or assets to file an income tax return. Therefore, it is recommended that you consult with a tax professional or use an online tax filing software to help you with the process.