The Pakistan Peoples Party (PPP) Chairman Bilawal Bhutto-Zardari announced that the party will hold a rally on Thursday.

Taking to Twitter to make the announcement, Bhutto-Zardari said: "PPP rally from Lahore to Faisalabad tomorrow. Your show is over Nawaz."

Bilawal had earlier tweeted that the PPP would begin its grassroots campaign with the rally.

The development comes days after PPP Co-Chairman Asif Zardari left Pakistan for Dubai where he spent a few days before travelling to the United States.

Zardari, upon his return to Pakistan from an 18-month, self-imposed exile, announced that both he and his son, Bilawal, would be contesting by-polls for seats in the National Assembly to be part of "this Parliament".

An informed source earlier told Dawn that Asif Ali Zardari was president of the Pakistan Peoples Party Parliamentarians (PPP-P) and Bilawal Bhutto-Zardari patron-in-chief of the PPP as per the list of political parties enlisted with the Election Commission of Pakistan (ECP).

He said the PPP-P had been allotted the symbol of ‘arrow’ and the PPP ‘two swords’ by the ECP prior to the 2013 general elections. And now the two leaders are required to contest the polls from the platforms of their respective political parties under separate election symbols.

The PPP had formed a separate entity, PPP-P, in August 2002 to meet the requirements of a decree issued by the then military ruler.

A law was framed to bar Benazir Bhutto from holding a party office and the new political entity was a bid to avert the imminent threat of losing the chance of contesting the elections.