Is there any possibility to find out the embedded raster image is Black&White, Gray image (or) Color image in "illustrator cs3" without using color mode shown in "document info" pannel. Kindly advice me, the possibilities and solution. And also any scripts avilable for this?
Make a PDF of the file, Open it in Acrobat and use the Advanced>Print Production>Output Preview. This will let you preview the separations. and see how the embedded file is separating.
Or you could select the embedded image, and open the Window>Document Info panel. Select Embedded Images from the fly out menu on the Document Info panel. This should give you the color mode and more info on the embedded file in question.
It also shows you the color mode in upper left of control bar at the top (when the image is selected).