Hon’ble Sheo Kumar Singh-I, J.—By means of the aforesaid writ petitions filed under Article 226 of the Constitution of India, the petitioners have assailed the order dated 18.7.2016 passed by U.P. Government whereby the final seniority list for the cadre of Assistant Commissioner, Commercial Tax has been finalized and issued. Writ Petition Nos. 19231 (SB) of 2016, 21520 (SB) of 2016, 20119 (SB) of 2016 and 18074 (SB) of 2016 have been filed for quashing the same seniority list i.e. 18.7.2016 with prayer to issue a writ, order or direction in the nature of mandamus commanding the respondents to prepare fresh seniority list in accordance with rules. While filing the Writ Petition No. 15963 (SB) of 2016 (A.K. Rai and others v. State of U.P. and others), the petitioners have prayed for issue a writ, order or direction in the nature of mandamus directing the opposite parties to finalize gradation list/seniority list from serial No. 2116 and onwards and to further hold departmental promotion for remaining 42 posts of Deputy Commissioner of the recruitment year 2015-2016. The list contains the officers of two categories mentioned in Rule 5(a) (i) and (ii) of the Uttar Pradesh Sale