Islamabad- Pakistan Tehreek-e-Insaf today expressed great concerns over letters written by Election Commission of Pakistan to returning officers. PTI Information Secretary Shireen Mazari blamed the Election Commission of Pakistan for alleged pre-poll rigging to favor PML-N in Senate elections. She said the commission has written letters to Returning Officers against the rules.

PTI has strong reservations on the matter, said Mazari. Mazari said the ECP is going against the Section 20 of the Election Act 1974.