Two bikes collision

I was going by bike from point A to point B and in the mid way a bike on highway overtook me from left side and as soon as it overtook me it turned right thereby crossing me without any indication of turning. I got baffled and applied full brakes of mine bike. Due to disk in front tire of mine I think bike got up from back and face of my bike got thrashed. While the bike threw me on the road And a small Nick was placed on the silencer of bike of another person (which I don't think so happened from my bike). The two persons fell down from bike and were crushed by a third vehicle which ran away and I who also was lying down on road unconscious was taken to hospital where I was treated for a week and was able to recover up. Now the opposite party has filed a fir on me. I was able to find out that both of the persons on other vehicle do not have driving license. When I went to file counter fir police said me that I can't do since both persons are dead. Opposite party has given complete lie in fir report that bikes have collided from front but in real position mine bike may have collided from back (as I was unconscious so I don't know what actually happened) due to their wrong turn taken. I am a govt employee right now. I wanted to give IAS exam this year but now I don't know what to do. What can I do. Please help me!!!!!!!