What would happen if I break my service agreement bond?

I had joined company on 28/1/2022 and they have me training of 6 months then it extends to 1 month more and then my employment started at the firm at 1/09/2023, At the time of joining I have signed service agreement with the company and given the security deposit cheque of 150000 to the company and now I have left the company on the date 7th July 2023 and broke the service agreement absconding from duty, Then mail was sent from the company's legal team saying that you have entered into the Service Agreement, that you will serve the Company for at least Two years and six months period and will not leave the Company before 28th July, 2024. As per your appointment letter & service agreement and post completing that period, we left with no options but to deposit the cheque of Rs. 150000/- (Chq. Number: 000001 Bank Name: Kotak Mahindra Bank) for recovering the damages. You are requested to keep a balance. If the cheque will dishonor, Company will take appropriate legal action.