C.T. Ravikumar, J.

The petitioners responded to Ext.P1 notification dated 30.4.2009 issued by the Kerala Public Service Commission ('PSC' for short) for appointment to the post of Police Constable (Indian Reserve Battalion - Regular Wing) in the Police Department. After conducting a regular selection process Ext.P2 ranked list was brought into force on 5.6.2010. The petitioners are included in the supplementary list published as per Ext.P2 ranked list. The contention of the petitioners is that going by the notification it was issued for the purpose of filling up 475 vacancies of Police Constables in the Indian Reserve Battalion - Regular Wing. 532 candidates were included in the main list and 571 candidates were included in various supplementary lists attached to the said list. After the coming into force of the ranked list on 13.7.2010, 475 candidates were advised from the said list. According to the petitioners subsequently 146 non-joining duty (NJD) vacancies were reported to the second respondent on 21.2.2011 and consequently, such number of candidates were also advised by the PSC on 5.4.2011. Thereafter 59 NJD vacancies and three fresh vacancies were reported to the P