Employee-Emplyer contract

I am going to join in a well reputed MNC company where I have been asked to a sign a 3 years bond. If I am quitting my job In the first year then I should pay my salary CTC amount. If I quit job in the second year then 75% of my CTC. Subsequently during third year then 50% of my CTC. Also I might get a chance to go to Japan by end of this year. I'm not very sure of it. I will only know it for sure by the end of March. So now I have decided to sign the contract because I don't want to miss this opportunity. But If I get a chance to go to Japan I will definitely choose Japan over this company. Now let's assume that I am getting a chance to go abroad by end of this year for which I will have to break the bond. In that case, 1. Will the company have the right to sue me? 2. Should I have to pay my CTC as quoted in the bond as compensation? 3. Can I relieve from the company without fine or penalty? 4. If the company sends a legal notice to me will that affect my VISA procedures in any way?