What is the meaning of an incorrect claim?
​'An incorrect claim apparent from any information in the return' means a claim on the basis of an entry in the Income-tax return:

Which is inconsistent with another entry of the same or some other item in such return;
In respect of which, information required to be furnished to substantiate such claim, has not been furnished;
In respect of a deduction, where such deduction exceeds specified statutory limit which may have been expressed as monetary amount or percentage or ratio or fraction.​