The 354 fee is a verification fee for Digital Signature Certificates (DSC). The fee is 300 rupees plus GST, which is a total of 354 rupees. The fee is in addition to existing DSC Certificate Stock charges. check here
https://www.efilinginfotech.com/2023/08/28/dsc-verification-fee/
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Mithun Thakur (CEO)
EFiling Infotech Private Limited
HMP House, 4, Fairlie Place, 1st Floor, Room No. 110
Kolkata - 700001, West Bengal, India