SF personnel were embedded with Mukti Bahini. Mukti Bahini was trained and led by SF. It never was all Mukti Bahini operation except for suicide missions.
I do not think anyone has more experience than Indian SF when it comes to fighting in forested mangros. 1971 war is a good example of that.
Note: Except for may be US. They did some heavy duty fighting in Vietnamese jungles that had swamps.
If things escalate, we can do few simple things to box Bangladesh -- nothing fancy will be needed. But for now some "disciplinary" actions against BGB would be sufficient.