71 constituencies spread over 9 states will go to polls in this phase on April 29.
Friday is also the last date for withdrawal of candidature for the fourth phase of Odisha Assembly elections. Polling here will also be held on April 29.
Meanwhile on Friday, UPA chairperson Sonia Gandhi filed her nomination papers from Rae Bareli in Uttar Pradesh. She was accompanied by her son and Congress president Rahul Gandhi and daughter-party general secretary Priyanka Gandhi Vadra.
Sonia Gandhi is contesting from Rae Bareili for the fifth time. She has won from the seat in 2004, 2009 & 2014 as well as the by poll in 2006.
Union Minister Smriti Irani also filed her nomination for the Amethi Lok Sabha constituency. She thanked people for their support and expressed confidence of registering a win this time.