After giving offer letter, and forcing me to resign, 3 days before my officially joining, the client has cancelled the project, now there is no vacancy here what can be done?

Unprofessionally infamous company with 0 ethical values. Was interviewed, got selected, was sent offer letter and was pressed to send the acceptance and the resignation letter of the current company at the earliest which i did, 3 days before my joining my offer was revoked by giving a lame excuse that the client cancelled the project. When i went to meet the HR of the company she did not even had the courtesy to meet me and had to return from the reception itself. Had to go through a lot of trouble since i even resigned in my current company because of the offer. Would highly recommend anyone about to join the company or interview please dont you are risking your present too. The company is very confused about hiring someone even after they send the offer letter, commitment is something they are not familiar with. My suggestion to the management of the company please dont play with an individuals career shut down the company if you cannot run it.