I am in group 3 category who's visa interview was cancelled. As suggest, I wrote and email to Embassy mentioning judge Mehta's verdict and asking to reschedule my interview under "mission critical" case. This is the reply I got from them today;
Thank you for writing to the U.S. Visa Service Desk.
We understand that you have a query regarding the interview date.
In response to your question, we would like to inform you that as of March 17, 2020, the United States Embassy in Kathmandu is cancelling routine Diversity visas and nonimmigrant visa appointments. From March 23, 2020, the U.S. Embassy is cancelling all routine immigrant visa appointments. We will resume routine visa services as soon as possible but are unable to provide a specific date at this time.
Further, please continue visiting our website and refer the red banner for latest updates on resumption of our services.
We hope this information is helpful to you.
Please visit the website to share feedback on the services we provide.
Have a pleasant day!
Yours Sincerely,
U.S. Visa Service Desk.