Hello @aman_patkar
Can you try replacing the following
!DATASET_PATH=$AICROWD_DATASET_PATH \
!aicrowd notebook submit \
--assets-dir $AICROWD_ASSETS_DIR \
--challenge addi-alzheimers-detection-challenge
with
%env DATASET_PATH=$AICROWD_DATASET_PATH
!aicrowd notebook submit \
--assets-dir $AICROWD_ASSETS_DIR \
--challenge addi-alzheimers-detection-challenge
and let me know if it works?