How many years after Mysore army unsuccessfully stormed the Kingdom of Travancore did Mysore forces under Said Saheb and Srinivasarao marched to Malabar through the Thamarassery Pass?
return the  Mysore  army unsuccessfully stormed the Kingdom of Travancore ;return Mysore  forces under Said Saheb and  Srinivasarao marched to Malabar through the  Thamarassery Pass ;return year of #1 ;return year of #2 ;return the  difference of #4 and  #3
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