The party said scores of its members were nabbed in the sweep in eastern Punjab province..
On the other hand, Pakistan Muslim League-Nawaz (PML-N) is geared up to accord a rousing reception to the former premier Nawaz Sharif and his daughter Maryam Nawaz on their arrival in Lahore on July 13 (Friday).
Police say dozens of Sharif's supporters were detained "to avoid violence". He has been staying with his critically ill wife in Britain.
Earlier, the Pakistan Muslim League-Nawaz (PML-N) supremo and the former first daughter had reached the London airport for their scheduled flight, a while after seeing Sharif's ailing wife, Begum Kulsoom Nawaz, who is now in the hospital, undergoing treatment. A few days ago, Sharif, in a press conference in London said that some state institutions are approaching his party's candidates to force them into leaving the PML-N and are threatening them with dire consequences if they didn't give up their support for him.
Nawaz Sharif, who was convicted in absentia last week of corruption and sentenced to 11 years in jail, commenced his journey to homeland from the city's Heathrow Airport late on Thursday.
The PML-N President Shahbaz Sharif, who is himself looking into reception program held a meeting to formulate a strategy for a warm welcome to Nawaz and his daughter.
Sharif also used the opportunity to again criticize Pakistan's powerful military, which has ruled the country directly or indirectly for most of its 71-year history, saying Pakistan now has a "state above state". Sharif offered condolences for the suicide bombing this week that killed secular politician Haroon Ahmed Bilour and 20 others during a political rally.