Help needed regarding Cheque Bond for employment

Hello Sir, I am in need of legal advice. It's based on the article http://tilakmarg.com/answers/dishonour-of-cheque-given-as-security-whether-offence-under-section-138-n-i-act-made-out/ I was previously employed with a company and I had a bond / service agreement there. And they also had bought cheques from me as a security for compensation. I was not happy there, so I quit my job and joined a product startup. So I didn't join any competitors in the IT service industry. Now they have filed a NI 138 case in which they have mentioned the agreement but they say I am legally obliged to pay them as per the agreement. As I remember, They are asking as a compensation for their efforts such as training and loss of human resource to competitive companies. They haven't provided me a copy of the bond even on asking. But I was not given any specific training apart from being told that.. these are the technologies we use here so research about it yourself. I was a fresher at the time of joining but I was familiar with the kind of work through my projects and small freelance works. So I started working on projects during my probation/training period. So I feel that I don't owe them anything and they are yet to pay me my last salary, security deposit and relieving documents. Please guide me whether I can prove myself at the court of law. Me and my family has been stressed out for almost an year now. The case is at a JFCM court and I had to take bail as the case is criminal. This is a constant reason for tension for us. They also have affected my credit rating by producing the cheque which I believe I don't owe to them. I would like to take them to court for causing such mental and fiscal tortures. And also they have collected 8 post dated cheques for 2 years time equals to 5 x times a predicted salary. Also by the agreement I have to pay 70000(5x my salary not CTC). They have withold a month's salary and security deposit of totalling around 16000 to this. So the amount should be 54000 right? They have produced a cheque of 65000. Sorry for such a long thread.. I am troubled and in need of advice. Should I go to the labour commissioner? Thank you.