quo warranto

What are the facts? What is the context?

the context doesn't matter. the purpose of it is to prove that a public servant holds the position through legal means. if he can't prove it, what's the point in allowing a appeal

Ma'am, 

You can refer to the case of Sanjay Kumar v/s The state of Bihar [Civil Writ Jurisdiction Case No.7983 of 2017] wherein it was opined by the hon'ble bench that the writ of „quo warranto‟ is not a substitute for mandamus or injunction nor for an appeal or writ of error, and is not to be used to prevent an improper exercise of power lawfully possessed, and its purpose is solely to prevent an officer or corporation or persons purporting to act as such from usurping power.

For further details, refer to: https://www.lawyersclubindia.com/articles/-how-to-writ-petition-filing-procedure-and-format--11204.asp

and https://www.lawyersclubindia.com/articles/analysis-of-writs-in-india-10773.asp