Jailed former Prime Minister Imran Khan's Pakistan Tehreek-i-Insaf resumed its march towards Islamabad on Monday after an overnight stop on the way amid stiff resistance by the authorities to foil the attempt to enter the capital and give a sit-in. So far Pakistan has suspended mobile and internet services in areas with security concerns. NDTV's Gaurie Dwivedi speaks to Senior Pakistani journalist Mehr Tarar, Ayesha Siddiqa, senior fellow, King's College and Tara Kartha, Former Director, National Security Council Secretariat.