it might seem heartless and cruel on part of your HR and TLs to refuse waiving your bond despite your admit and just 2 months to go, but think about it this way: everyone wants to maintain his or her KPAs, right? It reflects badly on your project manager that there was high attrition in his project, it reflects badly on your accounts guy's performance that there's a 50K deficit in the books, it looks bad on your HR guys PA that there was an absconder he couldnt nab...no one wants his/her life to get screwed you know! they would only make an exception for you if you had a long-standing relationship with them (which you aparantly should have, but dont). So there`s very little chance of all of them making way for you...even if the HR guy agrees, the other two might not.
When i broke my bond, the project manager agreed (coz i used to get him coffee and once lent him some wierd novel i picked up from the street

) and waived it...but the HR guy decided to play spoilsport and screwed my case. FYI, i`m an "absconder". they sent me threatening emails for a few weeks and then finally sent me a termination email. Consult with a lawer before you pay up...this bond might not even be worth the paper it is written on, for all you know!
Anyways, in case you, or anyone else here, decides to break the bond without paying, here`s a piece of advice:
empty your salary account immediately after you put in your papers. There's a small legal clause that allows the entity that opened the account for you (your company) to access your account. There was this case where this friend of mine refused to pay the bond amount, and the company promptly picked it up from his salary account! When he went to the bank to protest, they showed him some fine print! there were precisely 37 rupees and 79 paise in my salary account when i quit (the damn ATM would only dispense in multiples of 100!!

).