Service charge on declaration forms must be paid electronically via prescribed e-challan under amended HP GST Rules with retrospective effect. The amendment requires persons making declarations in the prescribed form to deposit a per-form service charge electronically via the Excise and Taxation Department's website using an e-challan designated as Form-VAT-II-A; it omits the earlier first proviso and explanation, removes 'VAT' from a form title, inserts the Form VAT-II-A e-challan template with specified receipt heads and cross-references, and makes the changes effective upon publication with retrospective effect from 1 July 2017.