You resigned, they cancelled your VISA, you're DONE! 2 yrs banned, or worst 5 yrs (rumor has it that there's a new law such as this). If you can get a NOC to Transfer Sponsorship, then start looking for one before you go home, otherwise, the moment you step into the immigration, you won't be able to come back anymore. NOC to transfer sponsorship is what you need, not just NOC to work in other company.