Section 420 and 138B along with few more sections

I sold a property to a builder. We found later that property was mortgaged with 2 different banks already but there papers are fake. My ex husband did this fraud and absconded to UK. Now builder has genuine paper and after registry was done. He sold it further . After selling filed a FIR against me and my Father. The sections are 420, 468, 471, 120, B -3 I went with my parents for investigations as and when required. Since I am not in the same city with parents. Now the IO was told the entire story that how I was cheated by my ex husband and he was convinced took money too. When this was realized by the builder he went to DCP office and threatened for suicide they changed IO and he wanted me to investigation again. He insulted us so we came to my place. So he went to our house after we left and put a notice for section 82 83 . Also isIn spite of the fact that I informed New IO that I can not come for 2 3 months as I am not well. Kindly help ...what should I do? I am absconding now with mom n dad.. they srevl