Islamabad [Pakistan], February 29 (ANI): Pakistan Muslim League-Nawaz (PML-N) supremo Nawaz Sharif said that the next two years will be quite challenging for the new coalition government in Pakistan due to fragile economic situation and political instability, Dawn newspaper reported. Sharif made the remarks at the PML-N parlimentary party meeting which he co-chaired alongside his brother and party president Shehbaz Sharif. He backed the deal between PML-N and Pakistan People’s Party (PPP) to form the government and expressed hope that Shehbaz Sharif will rid the country of all ‘gigantic’ probl…