Historic Pak polls: Imran Khan vs Nawaz Sharif in battle for Punjab
Ahead of the historic Pakistan elections, we take a look at the grave threats from terror groups. From Lahore, NDTV's Barkha Dutt reports on what these elections mean for the Pakistan Army where the generals have always been wary of Nawaz Sharif, and where this leaves Imran Khan, who has emerged as a key challenger in the all-crucial state of Punjab.
