Under Article 226 of the constitution the High Courts are given powers of issuing writs.
They are:
Habeas Corpus: It is issued to a detaining authority ordering the detainer to produce the detained person in the issuing court, along with the cause of his or her detention
If the detention is found to be illegal, the court issues an order to set the person free.
Mandamus: It is issued to a Subordinate Court, an office or Government, or a Corporation or other Institution commanding the performance of certain acts or duties.
Prohibition: The writ of prohibition is issued by a higher court to a lower court prohibiting it from taking up a case because it is not under the jurisdiction of the lower court. Thus the higher court transfers the case to it.
Quo Warranto: It is issued against a person the legality of holding a public office. Through this writ the court inquires “by what authority”? The person supports his / her claim.
Certiorari: This writ is issued to lower court directing that the record of a case be sent up for review, together with all supporting files, evidence and documents. It is one of the mechanism by which the fundamental rights of the citizens are upheld.
