Mahagathbandhan On 7 June, Lalu Prasad Yadav announced the RJD was joining in an alliance with the JDU for the election. On 13 July, he led a march demanding that the central government release its findings of the
Socio Economic Caste Census 2011 (SECC) on caste, although Union Minister
Ram Vilas Paswan pitched for a comprehensive classification of caste data of SECC 2011 before its release, and also said Lalu, Nitish will be worst impacted from the caste data even if its released. BJP Leader
Sushil Kumar Modi called for rectification of errors in the cases of 1.46 crore people in India, including 1.75 lakh in Bihar, before releasing the caste data. On 3 August, incumbent Chief Minister Nitish Kumar declared that he would not stand in the election. On 11 August, he announced the seat-sharing formula, according to which JD(U) and RJD will contest 100 seats each, while Congress will contest 40 seats in Bihar. NCP pulled out of this alliance later. On 23 September, Nitish Kumar announced the list of 242 candidates for the JDU–RJD–INC alliance. OBCs were most favoured in the alliance ticket distribution plan. 10% of tickets were allotted to women candidate by the alliance. The Congress Vice-president
Rahul Gandhi assigned the task to shortlist Congress candidates for each of the 40 assembly constituencies to former
Governor of Kerala and Nagaland Nikhil Kumar. Nitish Kumar was the declared chief ministerial candidate for the
Mahagathbandhan (Grand Alliance). Kumar started his
Har Ghar Dastak (door-to-door) campaign on 2 July. Initially there were definite political overtures when both
Lalu Prasad Yadav and
Nitish Kumar shared stage together in a public event commemorating former chief minister Satyendra Narain Sinha's birth anniversary that witnessed veiled attacks on each other, the last time they did it in public.
Prashant Kishor was a key election strategist for the alliance. The Janata Dal-United started 400 audio-visual vans called
Jan Bhagidari Manch raths for the campaign. Kumar is launching 'Bihar Samman Sammelan' in various cities, including Delhi and Mumbai, to connect with the Bihari diaspora. However, the grand alliance broke on 26 July 2017 as a result of the resignation by Nitish Kumar and on the next day 27 July JD(U) made an alliance with NDA and Nitish Kumar sworn in as the chief minister of Bihar for the 6th time and Sushil Modi was sworn in as the deputy chief minister for the 3rd time.
National Democratic Alliance The
Bharatiya Janata Party (BJP) used 243 GPS-monitored
raths (modified
Boleros) and video vans in the election. The BJP also set up a monitoring headquarters in Patna to track the movement of the GPS-equipped vehicles which will visit 40,000 villages in all 243 constituencies. The campaign was kick-started by Prime Minister
Narendra Modi in
Muzaffarpur on 25 July, where he also inaugurated the permanent campus of
IIT Patna in
Bihta. The BJP election exercise also involved three
lakh volunteers. Modi held his second election rally in Gaya on 9 August and his third rally in
Arrah and
Saharsa on 18 August. Modi announced a Rs 1.25 lakh crore package for Bihar. He addressed his fourth rally in Bhagalpur on 1 September.
Bollywood actor
Ajay Devgan also campaigned for the BJP. Modi addressed several rallies after 25 October in several constituencies. In a rally in
Buxar on 26 October, Modi vowed to defend reservation of Dalits, STs, OBCs. He said of the
Mahagathbandhan that it was trying to hatch a conspiracy to carve out a sub-quota on the basis of religion as the
Supreme Court of India has said reservation cannot be more than 50%. On 27 October, in
Bettiah, he again accused Nitish Kumar and Lalu Prasad Yadav of diluting the share of SC, ST and OBC. It promoted the view that an attempt was being made to take the reservation of Dalits and other OBCs and give it to other minorities. Union Finance Minister
Arun Jaitley also agreed with Modi's assertions that the idea of reservations on the basis of religion is fraught with danger. On 1 November, Modi repeated the allegations that the two leaders came together in July 2005 to demand a review of the policy to provide for religion-based reservation. A video dating from 2005 which was leaked showed Lalu was asking for a quota for Muslims. On 3 July, BJP announced its seventh
morcha, the BJP OBC Morcha, reportedly in regards to the election. On 11 June, Jitan Ram Manjhi announced his party
Hindustani Awam Morcha alliance with the NDA for the election. On 14 September, the NDA announced its seat distribution: BJP got 160 seats, LJP got 40 seats, RLSP got 23 seats and HAM got 20 seats. The NDA did not announce any chief ministerial candidate. BJP announced the names of 154 candidates in three lists. Caste played a major role in distributing tickets. BJP also accommodated five candidates of the Hindustani Awam Morcha. Later, the BJP gave the Imamganj seat to HAM for Majhi is contesting and BJP reduced its seat tally to 159. On 1 October, the BJP released its manifesto.
Socialist Secular Morcha On 19 September, the leaders of six parties –
Samajwadi Party,
Nationalist Congress Party,
Jan Adhikar Party,
Samras Samaj Party,
National People's Party and
Samajwadi Janata Dal Democratic – announced the formation of a third front known as the Socialist Secular Morcha. SP and NCP fought on most of the seats. NPP fought on 3 seats. On 15 October, NCP leader
Tariq Anwar announced that his party had decided to leave the third front.
Left Front On 24 July, the
Communist Party of India, the
Communist Party of India (Marxist), the
Communist Party of India (Marxist-Leninist) Liberation, the
All India Forward Bloc, the
Socialist Unity Centre of India (Communist) and the
Revolutionary Socialist Party decided to run in all constituencies on a join ticket citing its call for an alternative platform. CPI released its first list of 81 candidates on 16 September 2015.
Others Muslim parties At least six Muslim parties contested the election. AIMIM contested six seats.
All India Majlis-e-Ittehadul Muslimeen (AIMIM) leader
Asaduddin Owaisi addressed a rally in
Kishanganj on 16 August. Owaisi accused Nitish and Lalu of keeping the
Seemanchal region (consisting of 24 seats) as a backward region. AIMIM is contesting on 6 assembly seats in Seemanchal region where Muslim voters play a major role. He addressed a public rally in Kishanganj on 4 October in the Sontha village, which is part of the
Kochadhaman Assembly constituency. He held further rallies at many places in Kishanganj and Purnia. On 5 October, AIMIM released its first list of its six candidates for the election.
Bahujan Samaj Party In June 2015, the
Bahujan Samaj Party said it would contest all 243 seats. In July, the BSP initially released its first list of 49 candidates, including five women candidates, by Bharat Bind, the president of the BSP Bihar unit. National party leader
Mayawati planned to campaign for its candidates. BSP's first list has 11
Other Backward Class (OBCs) and 11
Muslims, while they also field Dalits and OBCs from non-reserved seats. On 6 September, Mayawati said of the central government that it was being "remote-controlled" by the "communal and fascist" organisation
Rashtriya Swayamsevak Sangh (RSS). Naseemuddin Siddiqui, Munquad Ali (Rajya Sabha MP), and Ram Achal Rajbhar were appointed to form a strategy to consolidate the Dalits, Most Backward Castes (MBCs), and Muslim votes. On 9 September, Mayawati questioned the announcement of Dearness Allowance (DA) by the central government just before the election and again accused the RSS and its affiliated
Sangh Parivar organizations of using the 2011 national census for fear-mongering against Muslim population growth for sectarian purposes, as well as to divert attention from such issues as the alleged failure of the central government to deliver on its promises. She added that the census also showed positive signs such as the sex ratio among Muslims is 951 females to 1,000 males, which is higher than the national average and indicated a slowing of the Muslim population growth rate. On 10 September, she called for the deployment of central forces in large numbers on electoral duty to assure a free and fair election and further asked the ECI to keep a watch on possible sectarian ploys by the BJP. Mayawati officially launched the party's campaign on 9 October from
Banka. On 13 October, addressing a rally in Rohtas and Kaimur districts, she claimed that the SP chief
Mulayam Singh Yadav and the party leadership had surrendered to the BJP. She claimed that it has fielded candidates after consulting with the BJP. She further called on the NDA to not allow the reservation policy for OBCs and SC/STs to fall under the RSS' influence. On 25 October, Mayawati while addressing a rally in
Buxar district of Bihar said that
Samajwadi Party played in the hands of BJP due to which
Nationalist Congress Party (NCP) broke away from it. She also alleged that BJP is working only for the Business class and the Nitish-Lalu governments did nothing for the poor.
Minor Expelled RJD MP
Pappu Yadav created the Jan Adhikar Party before the election and announced to fight against the Lalu-Nitish alliance.
Yogendra Yadav has announced that Swaraj Abhiyan may extend its support to certain political parties, however it was not clear which one. On 17 September,
Shiv Sena announced that it will contest over 150 seats during the election. On 19 September, a third front – Socialist Secular Morcha – announced its seat distribution: SP got 85 seats, Janadhikar Party got 64 seats, NCP got 40 seats, SSP got 28 seats, SJP got 23 seats and NPP got three seats. Former U.K. banker Akshay Verma's Sarvajan Kalyan Loktantrik Party contested about 90 seats in the election. The
Aam Aadmi Party and
JVM-P decided that they will not contest the election, but will campaign against the NDA. ==List of Candidates==