Forced to sign MoU for mutual divorce

I signed a MoU with my wife for filing a petition for divorce under mutual consent. Someone from my wife side called my father and said that he is a senior police officer, and my wife is coming on so and so date, and she wants divorce and so and so amount. He also warned my family not to speak to anybody as they have my previous calls recorded on the basis of which they will file complain if I tried to speak to my wife. There's nothing I said to anybody in any of my calls. So under fear, I signed the MoU and paid half the money instantly on the date of signing. The MoU has been notarized also. MoU was signed after only six months of separation, which states that the mutual divorce petition will be filed after one year. Now the time for one year of separation is approaching, and again the same person is pressurizing my family and me for signing the mutual divorce papers. My wife is also pressurizing me to do so. They are saying that since I signed the MoU I have to sign the divorce papers. Please let me know what are my options here.