The family, from Haryana's Panipat, was travelling to Bathinda to attend a marriage function, Sub-Inspector Rashpal Singh, of Tapa Mandi police station, said over the phone.
The incident took place near Ghunas village, about 6 km from Tapa Mandi in Barnala, he said.
"The motorcyclist was killed on the spot. The SUV later dashed against a tree, killing three people, including a child," he said.
The driver of the SUV survived the crash, he added.
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