Income tax return filing for Ay 2017 18

Effective from the FY 2017-28, a late filing fee will be applicable for filing your returns after the due date under section 234F. ... If you file your ITR after the due date (30th Sep) but before 31 December, a penalty of Rs 5000 will be levied.

You need to approach CBDT under section 119(2) of the Income-tax Act, 1961

It is a time consuming process. An application needs to be filed with the CBDT. 

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Wait and watch,

you will receive a notice of non filing of income tax return. at that time you may start your efforts.