Which income tax notices are taxpayers likely to receive after filing their ITRs?

Despite filing ITRs, taxpayers may receive notices like a Section 143(1) notice, which informs whether ITR has been accepted, a refund is due or additional tax is payable. A Section 139(9) notice is issued for a defective ITR and a Section 142(1) notice is issued for seeking additional information. A Section 143(2) notice indicates ITR is being scrutinised in detail.