Breaking Indemnity bond with an undated security cheque

Hi Experts, I joined a company in feb2018 by signing an indemnity bond for 30 months along with an undated security cheque (of my father) for 3lacs.I have to leave the company because of below reasons -there are no week offs(sat , sun and even public holidays) we worked for more than 7 months without a single holiday -they are creating fake profile for us (keeping an fake experience of nearly 4 years and selling us to other big companies) where we are unable to manage the experience claimed by them as we are freshers -treating us as slaves. -not giving salary as per offer letter. Now company had deposited the cheque in bank and sent me a legal notice (i replied to that notice ) claiming damages of 3 lacs , and booked a Case against NIA 138 .below things are mentioned in notice: -training cost .they said that they had given training for 6 months ( but they have not given) -absconding the company . ( i informed in person and by phone that i cant handle the fake profile that you are creating and i wont work like that .) Kindly provide your valuable advice.