@sunep : Those 2 changes solved the visibility issue. Now all the faces are visible :) Thanks !
However, some faces were appearing black, which, as everyoneishappy pointed, was possibly because the texture assignments were not ok.
However, even after assigning the right textures, some faces are not getting the texture. They are grey. Please see this screenshot :
@everyoneishappy : Thanks for the suggestions, but I’m a noob, so can you please tell me How do I check whether the normals are pointing the right way ?
@antokhio : I had previously tried collada export from sketchup, but the colladafile node outputs a null value when the file is given as input. Same problem for my other exports from sketchup too. Please see this screenshot :
@dannielmach : Sorry I didn’t understand what you said. Can you please explain ?
check you don’t export camera, seems happens quite regular with camera inside file, it’s also might be you exporting poly and not a mesh
put this collada file i’ll check it in max