IT company employment bond break of 2 years including internship

Hello sir, I am in an IT company. There is bond for 2 years including my training internship. After completion of training I'm an employee of that company and I have d worked there for 1month. After some days I knew from family that my father health is not good and I'm only child of my parents so I need to be there and I informed company that my father needs me so I'm going to my hometown and I'm leaving the job. As my company Bond said if I left then I have to pay 45000₹ to company but I belongs to a middle class family and the needs for father's health so I couldn't pay them whole amount I requested them that I can pay them 25 to 30k but they were refused and also not giving me time to pay amount. When I heard about father's health issue i came to home town and also I didn't request them to give me my first salary still they are refusing all requests. We are not able to pay them all amount. They said me if my cheque will going to bounce then they will take some legal actions. Sirs'