Congress retained the Ullal assembly constituency in Karnataka, which also saw ruling coalition partners BJP and JD(S) involved in a 'friendly fight'.
Congress candidate UT Khader, son of UT Fareed whose death necessitated the by-poll, defeated his nearest BJP rival Chandrasekhar Uchil by 8,032 votes, apparently cashing in on the sympathy factor.
JD(S), which had fought against its own coalition partner, lost deposit with its candidate Aboobkar Natekal polling only 6,217 votes.
Over 50 Congress leaders, including Union ministers Oscar Fernandes and KH Muniyappa and the entire state leadership had invested much time and effort into the contest, going all out to retain its hold over Ullal.
BJP had also campaigned vigorously to wrest the seat from Congress.
JD(S), which fielded its candidate at the last minute, had tried to woo the minorities who dominate the constituency but could not do so, despite Chief Minister HD Kumaraswamy plunging himself fully into the campaign.
The CPI(M) candidate Balakrishna Shetty also failed to secure deposit polling beyond 4,803 votes.
Ullal has remained a bastion of Congress which has won the seat six times since 1978. The BJP had wrested the seat in 1994 and CPI(M) in 1983.