To amend pleadings and fix an improper joinder issue, a lawyer must act diligently and use the correct procedural provisions to avoid rejection by the court. The process begins with identifying whether the misjoinder concerns parties, causes of action, or both, followed by filing an application for amendment under Order VI Rule 17 of the Civil Procedure Code. The lawyer must clearly explain the defect, show due diligence in discovering it, and attach both clean and marked copies of the amended pleading. If the issue involves misjoined parties or claims, corresponding applications under Order I Rule 10 or Order II Rule 6 can be filed to strike out, add, or separate causes of action. The amended pleading must remain precise, non-prejudicial, and free from introducing new or time-barred claims. Once the court grants permission, the amended version should be filed promptly, served to all parties, and followed by issue re-framing if necessary. By maintaining clarity, timeliness, and procedural compliance, experienced lawyers ensure that the amendment is viewed as bona fide, necessary, and aimed at streamlining the proceedings rather than delaying them.