JUDGMENT :

1. Heard Mr. K.N. Choudhury, learned senior counsel assisted by Mr. R.M. Deka, Advocate for the petitioners in WP(C) 8072/2019, WP(C) 8602/2019, WP(C) 8688/2019 and WP(C) 9374/2019; Mr. M. Bhagabati, learned counsel for the petitioners in WP(C) 9451/2019, Mr. K.U. Ahmed, learned counsel for the petitioners in WP(C) 25/2020; Mr. J.P. Das, learned counsel for the petitioners in WP(C) 1355/2020, WP(C) 1357/2020, WP(C) 1365/2020, WP(C) 1371/2020, WP(C) 1372/2020, WP(C) 1374/2020, WP(C) 1397/2020 & WP(C) 1400/2020 and Ms. D. Borgohain, learned counsel for the petitioners in WP(C) 1673/2020. Also heard Mr. B. Goswami, learned Addl. A.G., Assam, assisted by Ms. S. Chutia, Advocate and Mr. B. Gogoi, learned Standing Counsel, Finance Department.

2. The challenge made in the bunch of writ petitions is to the office order dated 25.11.2013 issued by the respondent No. 1, the order dated 28.08.2017 issued by the respondent No. 2 and the letter dated 28.09.2018 issued by the Chief Engineer, Water Resource Department, by which a decision has been taken to the effect that the regularized Muster Roll labourers and Work Charge labourers, who have been regularized against post which are made