SECTION 119(2)(b)

The following circular provides for different authorities who can condone the delay based on the amount invoiced. Any application to condone the delay for claim amount of Rs. 50 lac or more has to be made to CBDT only. In case the amount of claim is between Rs. 10 lac and 50 lac the application will have to be made to the Chief Commissioner of income tax or Principal Chief Commissioner of Income tax. However, in case the amount involved is less than 10 lacs, the same can be entertained by either Principal Commissioner of income tax or commissioner of Income Tax. The limits specified are same whether your application is for income tax refund or for carry forward and set off of losses. It may also be noted the above limits apply to each financial year separately and not for the aggregate of the claim for all the years taken together. Before accepting or rejecting the application these authorities are supposed to verify that the claim is correct and genuine.

Refer: cbdts-circular-regarding-condoning-of-delay-in-claiming-refund-

For details refer: condoning-of-delay-in-filing-return-article