You have a strong case because your documentation (Delivery Challan and E-way bill) supports a stock transfer, and the incorrect name is a clerical error covered by CBIC Circular No. 64/38/2018-GST, which explicitly protects against Section 130 proceedings for such minor lapses. You should file a formal written response citing this circular and challenge the attempt to reclassify a stock transfer as a taxable supply, while seeking legal counsel to prevent the illegal invocation of Section 130.