Yatra.com - issued ticket on flights that were cancelled

ISSUED tickets to US ON **TH SEPT FLIGHT FROM LUFTHANSA FROM Los Angeles to Mumbai, that included, FRANFURT TO BOM on **th Oct, KNOWING LUFTHANSA HAD CANCELLED ALL FLIGHT FROM EUROPE TO INDIA FROM SEPT **TH TO OCT **TH, NEVER HAVE UPDATED their SITE TO REFLECT THIS. WE WOULD HAVE REACHED FRANKFURT ANd GOT STUCK THERE.

FOR RETURN THE FLIGHT HAS CHANGED FROM BOM TO ZUR TO LAX, AS FOLLOWS
BOM TO ZUR, FRANKFURT TO LAX. NO FLIGHT BETWEEN ZUR TO FRANKFURT, PER AIRLINE, despited repeated calls and emails, no resolutions, they just keep saying we will contact you. The flight is within ** hours, when will they resolve or cancel remaining flights.