“17.Coming to the third question, which is more important from the point of consideration of High Court's power for issuance of mandamus, it appears that the constitution empowers the High Court to issue writs, directions or orders in the nature of habeas corpus, mandamus, prohibition, quo warranto and certiorari for the enforcement of any of the rights conferred by Part III and for any other purpose under Article 226 of the Constitution of India. It is, therefore essentially, a power upon the High Court for issuance of high prerogative writs for enforcement of fundamental rights as well as non-fundamental or ordinary legal rights, which may come within the expression 'for any other purpose'. The powers of the High Courts under Article 226 though are discretionary and no limits can be placed upon their discretion, it must be exercised along recognised lines and subject to certain self-imposed limitations. The expression 'for any other purpose' in Article 226, makes the jurisdiction of the High Courts more extensive but yet the Court must exercise the same with certain restraints and within some parameters. One of the conditions for exercising power under Article 226 for issuance of a mandamus is that the Court must come to the conclusion that the aggrieved person has a legal right, which entitles him to any of the rights and that such right has been infringed. In other words, existence of a legal right of a citizen and performance of any corresponding legal duty by the State or any public authority, could be enforced by issuance of a writ of mandamus. "Mandamus" means a command. It differs from the writs of prohibition or certiorari in its demand for some activity on the part of the body or person to whom it is addressed. Mandamus is a command issued to direct any person, corporation, inferior Courts or Government, requiring him or them to do some particular thing therein specified which appertains to his or