Hi Prathiba. I am trying something with New behavior Generator at the moment. It's just an idea I have. If it works at all, I'll let you and everyone else know.
I read something somewhere on the intenet that said that at some early stage in life we made a choice about how to code things and that was what led to, or didn't lead to, as the case maybe, photographic memory. If I remember correctly, what the guy said was that in order to function in daily conciousness, we had to make our memories feel "unreal". The people who chose to leave these memories as concrete experiences could access them in full.
I am sure that somewhere there must be a key to unlocking this.
Regards