Dear Sunil,
" WRIT " means the the orders issued by the Supreme Court or the High Courts under the powers vested in them under article 32 or 226 of the Constitution of India respectively to the Central or State Governments or any authority as defined under article 12 or any person discharging statutory obligations or obligations of public nature in order to enforce the rights guaranteed under Part III of the Constitution. The writs can be in the nature of Habeas Corpus, Mandamus, Prohibition, Certiorari and/or Quo Warranto.
A brief reading of articles 32 and 226 would indicate that a Writ can be issued ONLY by the Supreme Court or the High Courts to any person or authority and for the enforcement of the rights conferred in Part III of the Constitution and for any other purpose.
Normally, therefore, a writ petition is maintainable only against the State or its Instrumentalities or a person holding any public office.
However, the Supreme Court held recently in S.D.Siddiqui Vs University of Delhi and Others that a writ would lie against a private body only when it performed a public function or discharged a public duty. Therefore, we can conclude that an employee can not invoke the writ jurisdiction directly against his employer to enforce his employment rights unless the employer happens to be an "Authority" under Article 12 of the Constitution.
The position is different when an employee files a writ appeal against the orders passed by any Statutory Authority in a disputed claim against his employer.
Pl. treat it as my reply to your private message too.