BJP stalwart B S Yediyurappa on Thursday challenged Chief Minister Siddaramaiah to dissolve the Karnataka Assembly and go for elections now and claimed that the saffron party will win 140 to 150 seats. He said the people of the state have rejected the 'useless guarantees', money and muscle power of the Congress government and opted for the BJP in the recently concluded Lok Sabha elections. "I challenge Chief Minister Siddaramaiah, if he has guts, then dissolve the Assembly and go for elections again. Then only you will know what your position is. If the elections are held, BJP will win 140 to 150 seats," the Lingayat strongman said during the BJP state special executive meeting organised at the Palace Grounds here. Karnataka has 224 Assembly and 28 Lok Sabha seats. The former chief minister said in the Lok Sabha elections, the BJP-JD(S) alliance won 19 seats and the BJP got a majority in 142 assembly segments. Just a year ago, the Congress had come to power by winning 134 seats, b