There is no need for 2 loops, you have to use powerful unix commands in your scripts, like grep. This should work:
Of course, t.csv must be empty before executing the script.

while read LINE
do
aux=$(grep $LINE test.csv)
if [[ ! -z $aux ]]
then
echo "$aux" >> t.csv
else
echo "NA" >> t.csv
fi
done <tmplist.txt