Employer is not allowing me for local transfer, I need your support in this situation

My name is Abdul Yaseen Abdul Hameed currently working in my company from 22nd May 2023 to till date and am willing to take a local transfer. However, my employer is not allowing me to go and take a local transfer. Instead, he is threatening me that he will file a case and issue a final exit to me.

I submitted my official resignation with the local transfer request to my company through the official company email ID on the 5th of September 2024 by mentioning my last working day as the 7th of October 2024. However, I am ready to work till the end of this October.

Then they replied to me with these 3 points.

1. They are telling me that I have to notify them in writing through the electronic communication channels in the Qiwa platform only, whereas I have submitted through the company's official email.
But My question is - What about an official resignation sent through email? Is it not considered an official resignation with a notice period?

02. They are also saying that the notice period should be 60 days from the submission date on the Qiwa platform.
My question is - what about the notice period, which I have already started from the day (5th of September 2024) I submitted my resignation through the official email address to the company?

03. They are also telling me that I have to compensate the remaining period salary to the company till the date of the contract.

My concern is that this compensation for resignation is not mentioned in my contract, which is uploaded on Qiwa.
As per article 77, unless the contract includes specific compensation for the termination by either party for an invalid reason.

My question is - Is this true that have to compensate the company for remaining months' salary?

Can you please guide me and help me how to handle this situation? and allow me to take a local transfer, I planned to move today, but they haven't allowed me yet, and a new company is waiting for my local transfer.

I'm looking forward to your guidance and help as soon as possible.

Best Regards
Yaseen