GST Practitioner
55062 Points
Joined June 2017
Dear Sanjeev
What do you mean by "Rate fluctuation" ...... If it means ie instead of 18% you charged 12% , then you are liable Pay interest .
if ,we read Section 50 of CGST it's clearly states that " Every person who is liable to pay tax in accordance with PROVISION OF THIS ACT but fails to pay "
so you have not paid the tax to Govt as per provision of Act or short paid , hence liable to pay interest @ 18%