JUDGMENT :

SONIA GOKANI, J.

1. Present group of petitions are preferred under Articles 226 and 227 of the Constitution of India, raising identical questions of facts and law and therefore, these petitions are being decided by a common judgement and order.

2. Facts in the capsulized form for the purpose of adjudication, are drawn from the Special Civil Application No. 11523 of 2020, which are as follows:

2.1 The respondent authority had issued an online advertisement for the post of Constables (General Duty) in Central Armed Police Forces (CAPFs), NIA & SSF and Rifleman (GD) in ASSAM Rifles (AR) Examination, 2018.

2.2 There are in all 8 different categories in the advertisement like SSF- Special Security Force, CRPF-Central Reserve Police Force, CISF- Central Industrial Security Force, BSF- Border Security Force, Assam Rifles, ITBP- Indo Tibet Border Police, NIA- National Investigation Agency, and SSB.

2.3 The petitioner falls in Scheduled Tribe (ST) category, who applied for the post of CISF and later on, has given preference for the post of CRPF. On-line form for the registration was to be filled-in up to 20.08.2018.

2.4 The examination for the posts was conducted on 14.02.2019 and the p