Breaking a bond in unrelated company can cause any harm to my future job ?

Hi, I joined a company (company works in totally different field) on the grounds of 3 yrs bond period + 2 months notice period or 3 lacs bond money + 2 months notice period. I have sufficient experience in my own field but since I joined this company in time of very need when my project was terminated unexpectedly and I was jobless for some time. My current company also not paid me on increased salary after probation period mentioned on the bond. neither they have provided me any letter than as mentioned in the bond, passing the mentioned period I am a regular employee of the company. Now after 8-9 months experience, I got a secured job offer with much better salary from my field in a company in which I was trying from a long time. Can breaking this bond will have any harmful effects on my future job offer as the latter one has not selected me on the basis of current job profile. They selected me on basis of my background experience and education. So, officially I don't need any experience letter from this company. Do I have an upper hand on this case as I see they have broken the contract rules first by not paying me as said salary after completion of probation duration. Please suggest to come out of this bond problem. Regards Naveen