Babu Lal Soni, Pawan, Shiv and Parwati received burn injuries when accused, identified as, Mahesh and Shankar threw acid over them at Khajane Walon Ka Rasta here, police said.
They were rushed to the SMS hospital for treatment, they said.
The duo were booked under relevant sections of the IPC and one Vishnu was booked for scuffle, they said, adding, that no arrests were made in the case.
The two families claim their ownership over a disputed property, police said.