How to recover post-dated cheques issued by the employer after resignation

I have worked in a contracting company for 2 years as a supervisor. During the pandemic, the company faced problems with payment and projects.

That time, my visa also expired and I told them that I will not renew it because I need to get back to my home country.

Meanwhile, the company is facing some financial issues and they assured me they will clear my dues later and I agreed to get post-dated cheques.

I have 4 cash cheques dated 28.10.2020, 28.11.2020, 28.12.2020, and 28.01.2021 which all are cash cheques but unfortunately, still one single cheque didn't pass because of insufficient funds in an account.

I have been asking my boss politely for paying for the past 8 months. In the beginning, he behaved normally and asked me some more time but now he is telling me that because of me, some projects got problems and he didn't get payments.

Now I am in India and I have some medical issues for which treatment is going on. Presently I can't come to the UAE to fight with him. Is there any way to get my money back?

Please help me to get my money back.

Thank you!