Hello, I was employed with a private fertility hospital since 02.01.2017. I signed a bond with the hospital which stated that i will have to pay them an amount equal to one year's salary on the breach of the contract. But I was never given any appointment or offer letter from their. I had to work for more than 12hours without a single day off which ultimately led to health problems. Apart from that I was continuously facing mental harassment from my immediate senior since months. I informed the management regarding the same but no action was taken. On 19.01.18 I was called at the Director's office and asked to resign from my post. It was very difficult for to me decide so I left the place. Now they are constantly sending me notices asking me to pay the penalty amount since I broke the bond. last I received a notice from their lawyer. what should I do..?