Battle lines have been drawn in six parliamentary constituencies in Mumbai, where Eknath Shinde-led Shiv Sena and the Uddhav Thackeray led outfit will battle it out in three seats. While two seats will witness fights between the traditional rivals - the Bharatiya Janata Party (BJP) and the Congress, in one seat the Shiv Sena (UBT) and BJP will fight it out.
