The BJP was leading in all seven seats in Delhi on Tuesday, according to Election Commission trends.
The party's West Delhi candidate Kamaljeet Sehrawat was ahead by a margin of over 12,400 votes and Northwest Delhi candidate Yogender Chandoloya was leading by over 16,000 votes, EC data showed.
The BJP is in a direct contest with the Congress-AAP alliance in the national capital.
The BJP won all seven seats in Delhi in the 2014 and 2019 general elections.