Imran Khan welcomes poll outcome but alleges rigging
Khan welcomed the high turnout in the election, describing it as a "democratic evolution". He said Pakistan had witnessed possibly the largest turnout in its history.
Officials have said the turnout was estimated to be around 60 per cent.
"I congratulate the people for this democratic evolution. There is political awareness in the country and the people decided to take their future and destiny in their own hands," he said, speaking from his hospital bed.
Khan has been credited for inspiring many youths to vote with his calls for reform and ending corruption.
He especially thanked them for their passion and enthusiasm.
"I have seen victories and defeats in life but the pain of this defeat goes away when I remember your passion," he said.