The deadline for filing income tax returns for AY 2018-19 has passed, meaning you cannot file directly. However, if you have a TDS amount of Rs. 28,000 and are due a refund, you can apply to the Commissioner of Income Tax for condonation of delay under Section 119(2)(b) of the Income-tax Act, 1961. If approved, you can then file your return online.
If there is refund, after adjusting the tax liability, if any..than you can make applicable to commissioner of Income tax for condonation of delay along with reason for non filing u/s 119(2)(b) of the Income-tax Act, 1961.... After approval from Commisioner you can file your return online u/s 119(2)(b) for A Y 2018-19