State: ARUNACHAL PRADESH
Arunachal West (Gen): In 2009, Takam Sanjoy of the Congress defeated Kiren Rijiju of the BJP by 1,314 votes. The difference between the two parties in terms of vote-share was 0.5 per cent.
Arunachal East (Gen): In 2009, Ninong Erring of the Congress beat BJP's Tapir Gao by 68,449 votes. The difference in vote-share was 31.8 per cent.
Shillong (ST): In 2009, Vincent H Pala of the Congress defeated JF Kharshiing of the UDF by 1,07,868 votes. The difference between the two in terms of vote-share was 23.4%.
In 2009, the Congress won 5 of the 7 seats that will go to polls on April 9
Tura (ST): In 2009, Agatha Sangma of the Nationalist Congress Party defeated Debora C Marak of the Congress by 17,945 votes. The difference in vote share was 5.2%. This time, veteran politician Purna Sangma has replaced his daughter Agatha as the National People's Party candidate from this seat.
Mizoram (ST): In 2009, CL Ruala of the Congress defeated Dr H Lallungmuana, an Independent, by 1,08,955 votes. The difference in vote-share was 32.8%. This time, the Aam Aadmi Party has fielded a candidate from this seat.
[The polling in Mizoram was, however, postponed to April 11 due to the Bru issue, read here]
Nagaland (Gen): In 2009, CM Change of the Nagaland People's Front defeated K. Asungba Sangtam of the Congress by 4,83,021 votes, the biggest margin of that year. The difference in vote-share was 40.6%.
Outer Manipur (ST): In 2009, Congress's K Asungba Sangtam defeated People's Democratic Alliance's Mani Charenamei by 1,19,798 votes. The difference in vote-share was 15.9%.
[With inputs from www.indiavoters.com]