In Karauli district, Rampur village resident Shatrudhan (28) and his brother Parikshit (30) were killed when a state roadways bus lost control and hit their motorcycle.
It was a coincidence that the roadways bus was driven by their relative Jagdeep Singh, they said.
Two cousin brothers were electrocuted when they came in contact with a live electricity wire which broke and fell on them, when they were passing through the Jalampura-Biloda road of Chittorgarh district.
Their motorcycle also gutted in the incident, the police said, adding, the deceased were identified as Rajkumar (24) and Vikas (14).
Two persons, including a woman, were killed and 15 others were injured after a tractor-trolley, they were travelling in, overturned near Rajgarh in Alwar district, police said.
The condition of the injured persons is stated to be stable, they added.