Find out the correct statements – 

(i) In a suit for partition, all sharers are the necessary parties. 

(ii) A purchaser of property in a public-auction is a necessary party to the suit for a declaration to set aside the said public auction.  

(iii) A sub-tenant is necessary party in a suit for possession by the landlord against the tenant.   

(iv) Grandsons are the necessary parties to a suit for partition by sons against their father. 

(v) A local authority for whose benefit land is sought to be acquired by the govt. is a proper party in land acquisition proceedings.  

(vi) In complaint against a seniority list prepared by an employer, even if no relief is sought against a particular individual, the persons shown as senior to the petitioner are necessary parties.  

(vii) In an action against selection and appointment by an authority, candidates who are selected and appointed are directly affected are necessary parties