It was late afternoon, just edging towards evening. The sun was right in our eyes as we hurtled past Ambala. We had driven all the way from Jaipur in a heat haze over the last couple of days, and were eagerly looking forward to a quiet night of repose in Chandigarh. The road was well-paved and we were approaching a velocity of 60 km/hr, a positively supersonic number for overloaded trucks, which usually average 20 km/hr on long-distance trips.