2021

In the 2016 elections, Bidhan Chandra Majhi of Trinamool Congress defeated his nearest rival, Tarakeswar Saha of BJP.

2016

In the 2016 elections, Shyamali Pradhan of CPI(M) defeated her nearest rival Gadhadar Hazra of Trinamool Congress.

2011

In the 2011 elections, Gadhadar Hazra of Trinamool Congress defeated his nearest rival Shyamali Pradhan of CPI(M).

.# Swing calculated on Congress+Trinamool Congress vote percentages taken together in 2006.

1977–2006

In the 2006 state assembly elections, Joydeb Hazra of CPI(M) won the Nanoor (SC) seat defeating his nearest rival Gadadhar Hazra of Trinamool Congress. Contests in most years were multi cornered but only winners and runners are being mentioned. Ananda Gopal Das of CPI(M) defeated Krishnagopal Majhi of Trinamool Congress in 2001, Sibkinkar Saha of Congress in 1996 and 1991, and Adhir Kumar Saha of Congress in 1987. Banamali Das of CPI(M) defeated Sibkinkar Saha of Congress in 1982 and Dulal Saha of Congress in 1977.^[5]

1951–1972

Dulal Saha of Congress won in 1972. Banamali Das of CPI(M) won in 1971 and 1969. S.Jash of Congress won in 1967. The Nannor constituency was not there in 1962 and 1957. It was a joint seat in 1951. It was won by Sisir Kumar Saha and Basanta Lal Murarka, both of Congress.^[6]