"This election was contested at local level in which limited number of voters participated...It does not reflect people's opinion," Kumar told reporters here.
Out of 24 seats, 18 results have been declared so far and of them BJP won 10, ruling JD(U) four, its associate party RJD two and two went in the kitty of Independents.
The election was the first test of coming together of Nitish Kumar and Lalu Prasad before the state Assembly poll later this year.
Taking a potshot at BJP for expressing ecstasy over the victory, he said "if they wish to live in 'khusfami' (happy illusion) who can stop them. But the poll outcome does not reflect the future trend."
Kumar said the saffron party borrowed candidates for the Legislative Council seats from JD(U) and RJD who had influence in their areas and this turned results in their favour.