Haryana has an assembly of 90 members where Congress won 40 seats, Haryana Janhit Congress (HJC-BL) six, Indian National Lok Dal (INLD) 31, Bhartiya Janata Party (BJP) 4, Bahujan Samaj Party (BSP) and Shiromani Akali Dal (SAD) one each and seven seats went to Independents during the elections in 2009.
In neighbouring Punjab, the state assembly has 117 seats out of which 56 went to SAD in the 2012 assembly polls. SAD's ally BJP had got 12 seats, Congress 46 and three seats went to Independents.
With Congress' sitting MP from Sonepat Jitender Malik having withdrawn from race earlier, Congress fielded his younger brother Jagbir Malik as candidate from the seat.
Jagbir Malik is Congress MLA from Gohana and will be the first-time contestant for Lok Sabha.
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Rao Dharam Pal Singh Yadav is the Congress' sitting MLA from Badshahpur. He has entered the fray from Gurgaon to take on turncoat and former Union Minister Rao Inderjit Singh, who recently quit the Congress and joined the BJP.
SAD is an ally of former Chief Minister Om Prakash Chautala-led INLD, in Haryana.
In neighbouring Punjab too, the parties are banking on their MLAs on as many as seven seats.
The Congress has fielded its former Chief Minister Amarinder Singh from the Amritsar Lok Sabha constituency to take on BJP's Arun Jaitley. Amarinder Singh is presently serving as the MLA from Patiala.
Leader of Opposition in the Punjab Assembly, Sunil Jakhar, Congress' Abhohar MLA, has been fielded from the Ferozepur Lok Sabha seat while Sadhu Singh Dharamsot, Nabha MLA, will enter the fray from Fatehgarh Sahib.
On the other hand, ruling Shiromani Akali Dal has fielded Manpreet Singh Ayali, Dakha MLA, from Ludhiana parliamentary constituency and Adampur MLA Pawan Kumar Tinu from Jalandhar.
An Independent MLA Simarjit Singh Bains, who was supporting the ruling SAD has announced his decision to contest from Ludhiana.