I have applied for senior .net developer. It doesnt require lot of prepation. Common technical knowledge is morethan enough. They have taken 4 rounds of interview. Two rounds are technical,3rd round is managerial and last round is HR

First round was aptitude and coding .in that they ask medium level aptitude question and give snipet to find output of the some dot net code . Second round was virtual technical intrrview. Third round was hr interview