I went on an abroad deputation for 3 years in 2012. The company informed me that they would provide training, and I signed a bond agreeing to serve my Indian company for five years upon my return or pay 1.2 times the amount spent on training. After spending 1.5 years abroad, I realized that they were assigning me full-time work, so I resigned from my position abroad. However, the company did not release me and compelled me to complete the deputation until 2015. When I resigned this time via email, I chose not to go to the company as I anticipated they would mistreat me as they had before and would not grant me release. They are currently sending letters to my residence demanding the bond amount; otherwise, they threaten legal action against me. I possess a letter from the foreign company stating that I was an employee there for 3 years and not a trainee. Additionally, my resignation from 2014 remains unwithdrawn to date. Please advise on what steps to take.