Request received communication of proposed adjustment u/s 143(1)(a)

I have received a notice under section 143(1)a stating that "Income as per Form 26AS which has not been included in computing the total income in the return-143(1)(a)(vi)", while I have filed ITR correctly.
I am attaching both ITR and Notice. Please suggest solution. E -proceeding is closed automatically while notice date is 26-02-2019.

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