Idc Technologies Solutions India — Getting Offer Letter And Declined After Week

I got a selected and they offer me (Offer of employment). Due to offer letter i left my previous job, after week they told and declined my candidature. When i asked for reason they simply told the project are cancelled at this moment. After that there is no response.This is way to convert employment to unemployment. My joining date was 23-Aug-2021 as per offer letter.
Now i am unemployment.