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CRISIL (formerly Credit Rating Information Services of India Limited) is a global analytical company providing ratings, research, and risk and policy advisory services. CRISILs majority shareholder is Standard & Poor's, a division of McGraw Hill Financial and provider of financial market intelligence.

An airport authority is an independent entity charged with the operation and oversight of an airport or group of airports. These authorities are often governed by a group of airport commissioners, who are appointed to lead the authority by a government official. When the authority of an entity encompasses more than just the airports in an area, harbor and rail facilities for example, the entity may be referred to as a port authority.

The Delhi Metro has been instrumental in ushering in a new era in the sphere of mass urban transportation in India. The swanky and modern Metro system introduced comfortable, air conditioned and eco-friendly services for the first time in India and completely revolutionized the mass transportation scenario not only in the National Capital Region but the entire country.

The Delhi Development Authority was created in 1955 under the provisions of the Delhi Development Act "to promote and secure the development of Delhi"