Major political parties, including the Pakistan Muslim League-Nawaz , the Pakistan Tehreek-e-Insaf and the Pakistan Peoples Party, have cancelled their rallies in Karachi’s NA-249 constituency due to the rise in Covid-19 cases.However, electioneering in Baldia Town is gathering momentum as all the contestants have been flexing their muscles to give one another tough time in the upcoming by-poll for the National Assembly seat.Balloting will be held on Thursday to elect a public...