The accident took place on the Panipat-Khatima highway near Mavi village on Sunday night, they said.
According to Station House Officer (SHO), Kairana, Dharmendra Singh, the victims were returning to Panipat in Haryana from Haridwar when the vehicle lost control and rammed into a divider.
The deceased have been identified as Lakshmi Devi (70) and her granddaughter Wanika (3).
The injured were rushed to a nearby hospital, the SHO said.
The bodies have been sent for postmortem. PTI COR ABN ABN DV DV