Police said the vehicle hit the median on the Delhi- Haridwar national highway and overturned near Chalat in the district yesterday.
Thirty-year-old Rohit and his wife Sarita (28) died on the spot.
The injured have been admitted to a hospital, police said.
Sarita was posted at Kotwali police station here.
In a separate accident, a 35-year-old trader, Kamal Jain, and his relative Deepa Jain (50) were crushed to death by a speeding bus on Circular Road near here last evening.