Bengaluru: An estimated 66.25 percent voters exercised their franchise for by-elections to 15 Assembly Constituencies in Karnataka that went to polls yesterday. The highest turnout was reported in Hoskote Assembly Constituency with 86.77 and the lowest was in K.R. Puram with 43.25 percent. The other two Constituencies in Bengaluru too have recorded low turnout, Mahalakshmi…