GST rule amendments extend claim timelines and revise UIN application and payment processes for cross border suppliers. Amendments revise timelines and procedural mechanics under the Rajasthan GST Rules, 2017: extending a rule 3 period to ninety days; allowing Ministry of External Affairs recommendations in rule 17 for UIN processing and substituting Form GST REG-13; requiring electronic declaration in Form GST ITC-01 for input tax credit with Commissioner extended time limits; prescribing Joint Commissioner rank for Authority for Advance Ruling membership; and expanding permitted electronic and international payment routes for certain cross border online suppliers.