Wrongly submitted return u/s 139(9) without notice.

A client's tax return was incorrectly filed under section 139(9) without prior notice by a previous consultant, resulting in an unexpected tax demand. The client, who is income-exempt under section 10(26) as a Scheduled Tribe member, needs assistance to resolve this issue. The advice suggests contacting the Assessing Officer (AO) for a rectification request and potentially filing a revised return, or responding online if the demand originated from the CPC.