Can I act now to avoid a future show cause notice from customs for importing a sex toy.

Hello sir I have ordered a sex toy from a global e commerce website without being aware that the item is in the prohibited items list. The shipment is in transit to Kolkata Airport Sorting office (reaches in next 15 days). I am afraid I'll receive a show cause notice from the Assistant Commissioner about this illegal importing as mentioned in this forums by people who had done this act before. What can do now to avoid the said show cause notice ? Can I write through a lawyer to the Assistant Commissioner about the matter and say that I do not wish to import/claim the shipment anymore and to confiscate or send it back to the sender as they seem fit ? or should I wait for the show cause notice and then counter it ? Is there anyway for me to request any authority between Kolkata Airport sorting office and Kolkata customs check to intercept the parcel and destroy/send it back to the sender before the parcel reaches the customs for inspection ? I am asking this question as I thought, declaring contents about the shipment beforehand and not claiming it anymore would be better than the customs examining it and finding it as an obscene material which leads to a show cause notice. Kindly let me know which would be a wise step.