India now has 25 Cost Accounting Standards. This guide sets out all of them, explains which ones do the heavy lifting in practice — CAS-4 for GST valuation, CAS-25 for inventory, CAS-2 for capacity — and identifies exactly where they carry statutory force under the Companies Act and the CGST Rules.

The June 2026 results are out. Clearing the exam is one thing — knowing what to do in the eighteen months that follow is another. A practising Cost Accountant's guide to membership, the COP decision, choosing between industry and practice, and the skills that actually compound.