Accuracy detoriated on using gridsearchcv , the link to my notebook is given below , why is it decreasing ?need help

#1

https://drive.google.com/file/d/1y0QrBp8GvXObw9ugAQkvmuYDCTUQ9Xsg/view?usp=sharing

#2

hey @rohansrivastav ,
at the first time , you are checking score at training data.
and after grid search , you are getting average score of all folds, means validation score.

hence it is low, but still best of the given parameters.