Breach of employment contract

I was fresher and worked in an IT company 4 years back. I have signed an agreement in that company which stated I have to serve in that company for 3 years . If I fail to serve, I have to pay 1,50,000 INR. Actually I have worked in that company for 45 days. As a fresher I was not trained by the company. I did not receive any domain specific training also.I was directly forced to work . I had worked hard and spent more than 12 hours in a day at office. I was pressurized by the company since I signed in agreement, I was asked to work at very tough situations which made me to fall in sick. Due to that I was hospitalized for more than 1 month and it took 6 months to recover. After that I left IT dream and doing agriculture. Now Company is saying that they have sent letters which I have not received since I am in a remote area. Now the company sent a letter from a lawyer which is stating that I have to pay 2L immediately. Otherwise they will initiate legal action in court. I am poor farmer who is not able to pay any of the loans at present Due to no rain and no water I have stopped agriculture and no money to live on. I am not in situation to pay the amount which was mentioned by the company. If the company file a case on me what will be the issues I'm going to face. Please clarify what kind of remedies available for this issue. Currently I'm preparing for govt exams. Will this case affect my career... Please clarify it. Thanks Kanitha kawasi.