BJP was leading in three of the four Lok Sabha seats in Himachal Pradesh while Congress' Virbhadra Singh was ahead in the Mandi constituency.
In Hamirpur, Anurag Thakur, son of chief minister Prem Kumar Dhumal, is leading over Congress nominee Narinder Thakur by 17,109.
Singh is leading over his BJP rival Maheshwar Singh by 3301 votes.
In Shimla (reserved) seat, BJP's Virendra Kashyap is leading over Congress nominee Dhaniram Shandil by 6784 votes, while Rajan Sushant of the saffron party is ahead of Congress' Chander Kumar by 1784 votes in Kangra.