Office Bond

Hi all, I started my career in a private organisation since 2022. I have a bond of 3 years in the organisation. If I fail to full fill i would be liable to pay the half of my CTC as mentioned in the offer letter. Is this thing legit ? The organisation doesn't have any of my original certificates as well. Also for the ones that joined in 2023 or later are having bond of 2 years. Can I ask the management to lower my bond term to 2 years ? Please let me know your thoughts on this. Thanks in advance 😃