It is a well settled rule of interpretation applicable alike to documents as to statutes that, save for compelling necessity, the court should not be prompt to ascribe superfluity to the language of a document "and should be rather at the outset inclined to suppose every word intended to have some effect or be of someuse". To reject words as insensible should be the last resort of judicial interpretation, for it is an elementary rule based on common sense that no author of a formal document intended to be acted upon by the others should be presumed to use words without a meaning. The court must, as far as possible, avoid a construction which would render the words used by the author of the document meaningless and futile or reduce to silence any part of the document and make it altogether inapplicaple.”
Ramana Dayaram Shetty V. International Airport Authority of India (1979) 3 SCC 489