What to do if intimation under section 143 (1) is received after filing ITR: How do I reply to income tax notice under section 143 (1)?

How to read income tax intimation notice under section 143 (1): The intimation notice under section 143(1) of the Income Tax Act, 1961, will be sent to the taxpayer's registered email address with the tax department. Additionally, the taxpayer will receive an SMS on their registered mobile number to notify them that the communication has been sent to the registered email address.