I have one confusion regarding dataset as train data and test contain two diff excel file one is dengue_label_train and other is dengur_feature_train. My confusion is do i have to merge these two excel file for train data
If you look at the submission_format.csv then you may get your answer.
use dengue_features_train.csv data for your classifier then predict label using those features data
so your ultimate target is to output/predict total_cases number.