HI there,
Both of the sides with pictures on them are very close to being the same as the original full size medals (which would have been silver). Each would also usually have had a clasp containing the names of the battles a soldier took part in as well as a suspension bar upon which the ribbon would have been looped around. This would actually have been the reverse of the medal.
The other side of your photos however proves they are not miniatures, as true minis would have had the image of Queen Victoria (Punjab Medal) or Edward VII (IGSM). Minis would also have had the clasps on, as well as the ribbon. This side would be the front (or obverse) and would be the side worn "showing".
I've not seen medals like this before - someone will have!
Hope this helps,
layerb