i joined a company on Feb 17,2014 and in the appointment letter it was mentioned "unless an appointment letter is issued after the completion of training or the same is shortened or extended in writing,the training shall automatically stand terminated at the end of 12 months period" and i attended office till March 22,2015 but i did not recieved any letter for extension of training and neither i was confirmed as post mentioned in my march salary slip.now when i went to resign they are not accepting my resignation saying you had service bond of 3 years. please let me know what does termination of training means because after training completes we were to get confirmation but i did not get that and no any extension of training.also we had a service bond which says to pay 1.5 lakhs if i leave before 3 years saying they incur expenditure on our training but we were not given any training,infact the company was not having any training department wen i joined and we were asked to do duties as a regular empolyee which is recorded in daily LOG book.so what will be my chances if they sent me legal notice? also the sign of surety or father on bond agreement is not present in my agreement. please suggest me what should i do as i am thinking of sending resignation letter via post