Former AAP minister Saurabh Bhardwaj was leading from the prestigious Greater Kailash contituency by a margin of 2745 votes after second round of counting.
With 20,784 votes, Bhardwaj is way ahead of BJP's Rakesh Gullaiya who has bagged 18,039 votes.
Congress candidate Sharmistha Mukherjee, daughter of President Pranab Mukherjee, managed only 2338 votes.
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In the December 2013 polls, Bharadwaj won the seat by a margin of 13,092 votes.
Bharadwaj got 43,097 votes (45.26 per cent) as against his nearest candidate BJP's Ajay Malhotra who got 29,897 votes(31.51 per cent). Congress came third with its candidate Virendra Kasana bagging 19,714 votes (20.70 per cent).