I was on the Spirit of India tour last February.
When travelling by coach the "comfort stops" were mostly squat toilets with one or more UK style - if I remember correctly all were in separate cubicles with doors - unlike Tibet :s
In Ranthambore National Park - the tiger reserve - we did have a comfort stop but the facilities were being renovated - so it was girls to the left and boys to the right - never thought i would be having a pee out in the open in tiger country :rolleyes:
Usual reminder about always having tissues and hand wipes/sanitisers applies.
I loved this holiday - I also did the Amritsar add on - the sights and the people will stay in my memory for ever. I hope you have a wonderful time.