Three-time Pakistan prime minister Nawaz Sharif ended four years of self-imposed exile Saturday, launching his political comeback at a rally attended by thousands of rapturous supporters ahead of elections due next year. Pakistan is facing overlapping security, economic and political crises ahead of polls pushed back to January 2024, with Sharif's major opponent, the fiercely popular Imran Khan, languishing in jail. NDTV decodes what the leader's return means for Pakistan.