Cost audit under Section 148 applies to companies engaged in specified industries with turnover/net-worth thresholds. The cost auditor is appointed by:

1. Section 148 — cost auditor is appointed by the BOARD on the recommendation of the audit committee (where required), and remuneration is ratified by shareholders. 2. Eligibility: a cost accountant in practice. 3. Hence (A). _Source: ICAI BoS CA Inter Paper 2 — Audit and Auditors_