Which Party won the fresh Lok Sabha elections that were held in 1980 after the Janata Party lost its majority?

Congress Party.

Fresh Lok Sabha elections were held in January 1980 in which the Janata Party suffered a comprehensive defeat, especially in north India where it had swept the polls in 1977. Congress party led by Indira Gandhi nearly repeated its great victory in 1971.It won 353 seats and came back to power.