# Holding & Subsidiary Companies
## Definitions
### Subsidiary Company [Section 2(87)]
Company X is a subsidiary of Company Y if any one of the following three conditions is satisfied:
(a) Board Control Test
Y controls the composition of X's Board of Directors — i.e., Y has the power, at its discretion, to appoint or remove all or a majority of X's directors without the consent of any other person.
(b) Voting Power Test
Y exercises or controls more than one-half (>50%) of the total voting power in X, either on its own or together with one or more of its subsidiaries.
(c) Chain / Step-Down Test
If X is a subsidiary of Z, and Z is itself a subsidiary of Y, then X is also a subsidiary of Y (step-down subsidiary).
### Holding Company [Section 2(46)]
A company is the holding company of another company if that other company is its subsidiary as per Section 2(87).
### Layers Restriction
Proviso: Prescribed classes of holding companies shall not have layers of subsidiaries beyond such numbers as may be prescribed. (Currently restricted to two layers for most companies under the Companies (Restriction on number of layers) Rules, 2017.)
## Key Conceptual Points
- For this clause, 'company' includes any body corporate — so holding/subsidiary relationships can be established between an Indian company and a foreign body corporate.
- Holding and subsidiary are separately incorporated, distinct legal entities — each has its own identity, assets, liabilities.
## Section 19 — Subsidiary Cannot Hold Shares in its Holding Company
General Rule: A subsidiary company shall not hold shares in its holding company; and a holding company shall not allot or transfer its shares to any of its subsidiary. Any such allotment/transfer is VOID.
### Three Exceptions
1. Subsidiary holds shares as legal representative of a deceased member of the holding company.
2. Subsidiary holds shares as a trustee.
3. Subsidiary held shares in the holding company even before becoming a subsidiary.
### Voting Rights in Exception Cases
In cases (1) and (2) only — i.e., when held as legal representative or trustee — the subsidiary has the right to vote at meetings of the holding company in respect of those shares. (Case (3) shares do NOT carry voting rights.)