If you have flattened the image and have no back-up the Layers would appear to be gone for good.
Edit: And as you stated you closed the file History is no use here.
No pfaffenbichler, I have not flattened the image, only i have used convert to profile form RGB to CMYK.
Help me its a big trouble for me
Sorry bud...but if you converted to CMYK and did NOT hceck Preserve Layers and then saved over your original layered RGB file, your layered RGB image is toast–as in gone, as in you are screwed...sorry, but Convert to Profile can flatten all the layers (depending on the options) and once flattened and saved, you have no option to recover the layered RGB file (unless you have is saved somewhere).
No pfaffenbichler, I have not flattened the image
If you flattened a file in conversion it’s still you who has made the decision; whether you did it knowingly or unknowingly is not much relevant now with regard to the content you have removed.
finally you all are saying that there is no way back...
because i have checked flattened when i converting it.
No Way Back, i ll take care of it in future
thanks to all