bjp state president Mr p k krishnadas told yesterday that the party have made improvements in the vote percent in the  three assembly segments where the by elections  took place on November 7th.there was an increase of 1% in kannur to 5% of total votes ,in allapuzha an increase of 1% to 3% of total and in eranankulam to 7% from 5%.the party which have always been alleged of selling votes to ldf and udf is largely supported by the upper castes.