Happened to come across some more images of Indian Army undertaking canal crossing operations. These are also from various exercises conducted by the IA over last couple of years.
1. T-72 entering the bridge over a canal.
2. BMP-2 crossing the bridge over a canal. You can see the pontoon bridge has been tethered to the home and far bank of the canal. In case of a bigger water body, they would have required the use of the boats which form part of the whole PMS Pontoon Bridge System. The pic above and below are from exercise Hind Shakti-2009.
3. BMP-2 crossing the canal. The water body in the image looks similar into which BMP-2 can be seen entering in the first image of original photo-essay on canal crossing operations.
Source (1, 2&3): Livefist.blogspot.in
4. Infantry/Engineers waiting to cross over to the far bank of the canal. One can clearly see the raft. The tank will provide the fire-cover. I once remember seeing a video of IA on YouTube which showed a small body of engineers crossing over, followed by BMP-2 on their power and some T-72 tanks snorkeling over to the far bank. This seems to be a standard SOP to secure a lodgement across a water obstacle.