Call-cum-show cause notice for import of prohibited goods

Dear Lawyers, I need help. I have received a call-cum-show cause notice for import of obscene item today from Office of the Deputy Commissioner of Customs regarding a package bought online. I'm not sure how to respond. Can I email them or do I need to send a written letter? Can you help with this? What are the implications of this? I live in Hyderabad - do I need to go to Mumbai per the notice? I have typed out the physical letter below for your reference. Thanks Ajay ---- CALL-CUM-SHOW CAUSE NOTICE 1. Whereas Shri ...name... resident of ...address... "the said goods" having assessable value as Rs. 80.619424/- vide Tracking no. rg783215791cn and M / MP No. 36245/2018. The said goods were duly assessed by the Customs authorities on the basis of the declaration available on the parcel / packet and were seized as import of the said goods by post is prohibited / restricted. 2. Whereas the said goods are obscene material, import of which is prohibited as per Section 292(i) of the Indian Penal Code read with Section 111 of the Customs Act, 1962 and the said goods are liable for absolute confiscation. Notification No. 1/1964 — Customs dated 18.01.1964 prohibits the import of any obscene book, pamphlet, paper, drawing, painting, representation, figure or article. 3. Whereas the said goods are liable for absolute confiscation under the provisions of Section 111(d) of the Customs Act, 1962 and the importer is liable for imposition of penalty under Section 112(a) of the Customs Act, 1962. 4. Now therefore, Shri ...name... resident of ...address... to show cause to the Superintendent / Appraising Section having his / her office at 2nd floor, Videsh Dak Bhawan, Foreign Post Officer, Ballard Estate, Mumbai — 400001 within ten (10) days of receipt of this notice as to why: (a) OBSCENE having declared value / fair value as Rs. 80.619424/- imported by Shri ...name... should not be confiscated under Section 111(d) of the Customs Act, 1962. (b) Penalty should not be imposed upon the importer under Section 112(a) of the Customs Act, 1962.