Regarding employment bond

Respected sir /madam , i have joined a private sector bank on 7 of june this year.I filled a two year employment bond with them in which it was written that if i leave before two years i will pay the sum of 75 thousand rupees and 24 interest on that for two years as penelty for training that we will provide. sir due to some family problem i have to leave the job so i resign on 22 june just after 10 days of joing bcoz from 18 to 21 i was absent. more over there was no traing provided to me.i just read a simple credit policy of them for two days and started working for them.there were no speacial progammes also for which they had to incurr cost on me.i just went there for 10 days only. and i am not demanding any relieving letter or salary for that. now after resigning they sent me a letter that i had a two year bond i have to pay the amount (1.2 lakh approx ) other wise they will take further action. i am in panic and very confuse. i am a fresher and this was my first job. i dont want to continue with them in any way. please guide me what to do and how to deal.