your case will be PIL; - IT IS ALSO A WRIT
apply under art. 226. for a writ format, search on net, if you go to supreme court website you will get a format of writ. if you donot get any writ format of your high court, then use sc format.
after obtaining format - start fill up the format, if you fill any difficulties put your question here also pm to me.
you file against the things - which you find, - objectionable. not the whole.
explain your cause of action - ie why you want to bring this petition - very clearly. ok, wish you have success.