Saifullah Khan Niazi, a senior PTI leader and a close aide to Chairman Imran Khan, has resigned over differences with the leadership on party’s policies.
Saifullah Niazi was the Central Additional Secretary General of PTI.
PTI spokesman Naeem ul Haq confirmed receiving Niazi’s resignation.
Saifullah Niazi was also the head of PTI’s committee during Islamabad sit-in in 2014.
Sources say that Saifullah Niazi has distanced himself from the party now.
The development is a major setback for Imran Khan, who is set to set to lead his party to Raiwind, the camp office of Prime Minister Nawaz Sharif.