S. 148A : Reassessment-Conducting inquiry, providing opportunity before issue of notice-Information from insight portal that assessee had transacted with Mutual Fund found to be involved in scam-No nexus between belief and material-Reassessment notice and order disposing the objection is quashed-Court can examine relevancy of recorded reasons in writ jurisdiction. [S. 147, 148, 148A(b), 148A(d), Art. 226]