MULTAN, July 2(ABC): Amid claims of “interference” in the upcoming by-polls in Punjab, the PTI has approached the Election Commission of Pakistan (ECP) to submit “evidence of by-poll engineering” and lodge a complaint against the rival PML-N candidate. According to report, PTI vice-chairman Shah Mahmood Qureshi, whose son is contesting on a PP-217 seat from Multan, on Friday reached the …