The clash between the two groups broke out over setting up an election office at a particular place of the area.
The first phase of the elections will be held on October 31 in Punjab province after about eight years.
As the Pakistan Muslim League (N) government was 'reluctant' to devolve the power at the grass-roots, the Supreme Court on the petitions filed by opposition parties ordered the government to hold the local body elections across the country this year.
According to the FIR, seven PML-N workers opened indiscriminate fire on the PTI workers present in their election camp.
More From This Section
Deputy Inspector General Police Lahore Haider Ashraf said two police teams have been constituted to arrest the culprits.
He said police had been deployed in the area to control the situation after the incident.
The Punjab government had declared several areas sensitive and requested the Election Commission for deployment of rangers on the day of voting.