Key constituencies in Phase 4

In this key constituency of Tamil Nadu, Congress candidate and Union Home Minister P Chidambaram will lock horns with R S Rajakannappan of AIADMK.

Cricketer-turned-politician and BJP candidate from Amritsar, Navjot Singh Sidhu, will compete against Om Prakash Soni of Congress and Lt. Gen B K N Chibber (retd) from BSP.

BJP leader Maneka Gandhi, after vacating her 'home-turf ' Pilibhit constituency for her son Varun Gandhi, has been fielded by the party as their candidate from Aonla parliamentary constituency. Here she will face sitting MP and BSP candidate Kunwar Sarvraj Singh as her main opponent.

Former Union minister Dayanidhi Maran of DMK will face S M K Mohamedali Jenna of AIADMK in the Chennai Central Lok Sabha constituency. V V Ramakrishnan of DMDK is also in the fray.

Sitting MP and actor-turned-politician Vinod Khanna is BJP's candidate from Gurdaspur Lok Sabha constituency. Pratap Singh Bajwa of the Congress and Sukrit Sharda of SP are also in the fray from this seat.

Anurag Singh Thakur of BJP will face Narender Thakur of Congress, Mangat Ram Sharma of BSP and Pankaj Katna of Shiv Sena in this key Himachal Pradesh Lok Sabha constituency.

Former Union minister and Trinamool Congress chief Mamata Banerjee will face old rival Rabin Deb of CPI-M in this prestigious Lok Sabha constituency.

Former Himachal Pradesh Chief Minister and Congress candidate Virbhadra Singh will lock horns with Maheshwar Singh of BJP in Mandi constituency.

Union Minister for Panchayati Raj and sitting MP Mani Shankar Aiyar of Congress will gace AIADMK's O S Manian in this key constituency of Tamil Nadu.

Rampur will witness a traingular fight between actress-turned-politician Jaya Prada of Samajwadi Party, former Union minister and BJP strongman Mukhtar Abbas Naqvi and former MP Begum Noor Bano of Congress.

Pilibhit, which has been one of the most talked about and controversial constituencies of Lok Sabha elections 2009, will witness a fight mainly between BJP debutant Varun Gandhi, who was arrested for his alleged 'hate speech' against Muslims during poll campaigns, and VM Singh of Congress. BSP's Buddhsen Verma and SP's Riyaz Ahmad are also in the fray.