Why should i pay OCTROI TAX for house hold kit

Good morning one and all.
i have one question.
i have booked a parcel of 17cartoon of house hold goods(house hold kit) for my personal stay with family in mumbai for hospital treatment. booking from hubli to dadar.
the booking amount was 960/- and paid cash in hubli while booking and now while collecting the parcel at dadar, i have been asked the pay the OCTROI TAX rupees 3000/-.
whom i have to complaint and release my parcel from dadar railway parcel service without paying OCTROI TAX.
do guide me