Banga v. Lawrence R. Lustig
- Paul Engelmayer
- 1:22-cv-09825
- U.S. District Court · Southern District of New York
- 3
In Banga v. Lustig, Magistrate Judge Sarah Netburn denied Kamlesh Banga’s motion to stay the federal case because the California proceedings were not parallel.
Kamlesh Banga and the defendants are affected by the denial of the requested stay; the federal action was not paused, and the court scheduled a conference to discuss its next steps.
What happened
In Kamlesh Banga v. Lawrence R. Lustig, M.D., et al., Kamlesh Banga asked the federal court to pause this case while she sought to undo a California state court judgment. She relied on a rule that sometimes allows federal courts to pause cases when related state-court litigation is happening at the same time.
Most of Banga’s common-law claims in the federal case had previously been dismissed because of the California judgment, and that dismissal was affirmed on appeal. Banga argued that her attempt to vacate the California judgment could lead to duplicated litigation or inconsistent rulings.
The court denied the motion for a stay because the California and federal proceedings were not addressing substantially the same issues at the same time. Magistrate Judge Sarah Netburn directed the clerk to terminate the motion and scheduled a telephone conference about the next steps in the case.
The detailed version
- Banga v. Lawrence R. Lustig · No. 1:22-cv-09825
- Paul Engelmayer
- Sept. 26, 2025
Background
Kamlesh Banga moved to stay, or pause, the federal action under the abstention doctrine associated with Colorado River Water Conservation District v. United States. Banga argued that a California state-court judgment was the sole basis for this court’s earlier dismissal of most of her common-law claims. She was seeking to vacate the California trial court’s dismissal based on alleged extrinsic fraud by the defendants.
The opinion states that the California court dismissed Banga’s four common-law claims with prejudice and that the California Court of Appeal affirmed. This federal court previously dismissed most of Banga’s common-law claims on the ground of res judicata, a rule generally preventing litigation of claims already resolved, and the dismissal was affirmed on appeal. Banga argued that reopening the California case could cause duplicative litigation or inconsistent rulings, supporting a stay of the federal case.
Legal standard
The Colorado River doctrine permits a federal court, in exceptional circumstances, to refrain from exercising jurisdiction when parallel state-court litigation could comprehensively resolve the dispute and conserve judicial resources. A necessary first step is determining whether the state and federal proceedings are parallel—meaning that substantially the same parties are litigating substantially the same issues in different forums.
Court’s reasoning
The court held that the proceedings were not parallel because the parties were not contemporaneously litigating substantially the same issues. If Banga succeeded in vacating the California judgment, the California case would merely reopen and proceed on the merits. That possibility did not create parallel litigation in federal court because the relevant federal claims had already been dismissed and that dismissal had been affirmed on appeal.
Disposition
The court denied Banga’s motion for a stay. The clerk was directed to terminate the motion at ECF No. 78. The parties were also directed to appear for a telephone conference on October 9, 2025, to discuss the next steps in the litigation.
Read the full 3-page opinion on CourtListener, the free public archive maintained by the Free Law Project.