Quasi-judicial authority:
A quasi-judicial authority is an entity or body that has the power to make decisions or judgments that are similar to those made by a court of law. These authorities are vested with certain powers and responsibilities to adjudicate disputes, make decisions, and enforce laws within their respective jurisdictions.

Options:
a) Central Vigilance Commission (CVC)
b) National Commission for Women (NCW)
c) Comptroller and Auditor-General of India (CAG)
d) Administrative Tribunal

Explanation:

Central Vigilance Commission (CVC):
The Central Vigilance Commission is an apex anti-corruption watchdog in India. It is responsible for addressing corruption cases and ensuring transparency and accountability in government organizations. However, the CVC does not possess quasi-judicial powers. It primarily investigates corruption cases and recommends action to be taken by the concerned authorities.

National Commission for Women (NCW):
The National Commission for Women is a statutory body that works towards protecting and promoting the rights of women in India. It investigates complaints related to women's rights violations and recommends actions to be taken. While the NCW has the power to investigate and make recommendations, it does not possess quasi-judicial powers.

Comptroller and Auditor-General of India (CAG):
The Comptroller and Auditor-General of India is an independent constitutional authority responsible for auditing government accounts and ensuring financial transparency and accountability. It does not possess quasi-judicial powers but plays a crucial role in ensuring financial oversight.

Administrative Tribunal:
An Administrative Tribunal is a quasi-judicial body that has the authority to adjudicate disputes and grievances related to the administration of laws and regulations. These tribunals are established for specific sectors such as tax, labor, or administrative matters. They have the power to hear evidence, examine witnesses, and make decisions that are binding on the parties involved. Administrative Tribunals are established to provide an efficient and specialized mechanism for resolving disputes outside the regular court system.

Out of the given options, the Administrative Tribunal is the only entity that possesses quasi-judicial powers. It functions as an independent body to resolve administrative disputes and ensure justice in matters related to specific sectors or areas of governance.