Writ means a written document by which one is summoned or required to do or refrain from doing something. And according to Artical-44 which itself is a fundamental right says that a person can file a writ under high court division which details given in article 102. There is  5 kind of writ Habeus Corpus, Mandamus,  Certiorari, Prohibition, Quo-Warranto. 

=> There are two types of persons can file a writ. First is aggrieved party or person can file a writ under Article 102 sub-article (2), clause-(a).

(i) Prohibition, Mandamus

(ii) Certiorari

=> Another is any person which is under Article-102, sub-article-(2), clause-(b)

(i) Habeus corpus

(ii)  Quo-Warranto