Imran landed in Lahore through his special chartered plane from Islamabad.
The PTI cheif waved his supporters after ascending the stage. Senior party leaders also flanked alongside him.
A large number of fervent PTI supporters chanted slogans in favour of their leader. He was brought to the rally amid stringent security.
At least 5,000 cops are deployed around Minar-e-Pakistan to provide security to the rally.