Madras High Court Allows Writ Petition Challenging Seniority List in TANGEDCO — Directs Re-drawal of Seniority List for Assistant Engineers (Mechanical) Based on Continuous Officialion and Rule 22(a) of Tamil Nadu State and Subordinate Service Rules. Seniority Determined by Continuous Officialion, Not Initial Appointment Date.

High Court: Madras High Court In Favour of Accused
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Case Note & Summary

The writ petition was filed by 18 petitioners, who were Assistant Engineers (Mechanical) in TANGEDCO (Tamil Nadu Electricity Board), challenging the suitability list dated 02.03.2013 issued by the second respondent (Chief Engineer, Personnel). The petitioners sought a direction to place them senior to respondents 3 to 14 in the seniority list for the years 2003-2011, and for consequential promotions. The background of the dispute involves the determination of seniority among Assistant Engineers (Mechanical). The petitioners were initially appointed as Junior Engineers and later promoted to Assistant Engineers on various dates. The respondents 3 to 14 were directly recruited as Assistant Engineers. The impugned seniority list placed the directly recruited respondents above the petitioners based on their date of initial appointment as Assistant Engineers. The petitioners contended that seniority should be determined by the date of continuous officialion in the cadre, as per Rule 22(a) of the Tamil Nadu State and Subordinate Service Rules. They argued that they had been officiating as Assistant Engineers from earlier dates and thus should be considered senior. The respondents argued that seniority should be based on the date of initial appointment. The court analyzed the relevant service rules and precedents, holding that seniority is determined by continuous officialion in the cadre. The court found that the petitioners had been continuously officiating as Assistant Engineers from dates prior to the appointment of the private respondents. Therefore, the impugned seniority list was arbitrary and contrary to law. The court quashed the impugned letter dated 02.03.2013 and the subsequent memos to the extent they placed private respondents above petitioners. It directed the respondents to re-draw the seniority list placing petitioners above respondents 3 to 14, and to notionally promote the petitioners to Assistant Executive Engineer with effect from 26th August 2013, with all consequential benefits including further promotions.

Headnote

A) Service Law - Seniority - Determination - Continuous Officialion - Rule 22(a) of Tamil Nadu State and Subordinate Service Rules - The court held that seniority in a cadre is to be determined by the date of continuous officialion in that cadre, not by the date of initial appointment. The impugned seniority list which placed private respondents above petitioners based on initial appointment dates was quashed. (Paras 1-22)

B) Service Law - Promotion - Notional Promotion - Consequential Benefits - The court directed that petitioners be notionally promoted to Assistant Executive Engineer with effect from 26th August 2013, and granted all consequential benefits including further promotions, as they were senior to private respondents based on continuous officialion. (Paras 22-24)

C) Constitutional Law - Writ Jurisdiction - Article 226 - Certiorarified Mandamus - The court exercised its writ jurisdiction to quash the impugned seniority list and direct re-drawal of seniority in accordance with law, as the list was arbitrary and contrary to service rules. (Paras 1, 22)

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Issue of Consideration

Whether the seniority of Assistant Engineers (Mechanical) in TANGEDCO should be determined based on the date of initial appointment or the date of continuous officialion in the cadre, and whether the impugned seniority list dated 02.03.2013 and subsequent memos are valid.

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Final Decision

The court allowed the writ petition. It quashed the impugned letter dated 02.03.2013 and the memos dated 22.04.2013 and 27.04.2013 to the limited extent of placement of private respondents above petitioners. It directed the respondents to re-draw the seniority list placing petitioners above respondents 3 to 14, and to notionally promote the petitioners to Assistant Executive Engineer with effect from 26th August 2013, with all consequential benefits including further promotions.

Law Points

  • Seniority determined by continuous officialion
  • not by date of initial appointment
  • Rule 22(a) of Tamil Nadu State and Subordinate Service Rules
  • Article 226 of Constitution of India
  • Writ of Certiorarified Mandamus
  • Principle of 'first appointment' vs 'continuous officialion'.
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Case Details

2026:MHC:446

W.P.No.12432 of 2013 and M.P.No. 2 of 2013

2026-01-30

Hemant Chandangoudar

2026:MHC:446

Mr.M.Ravi for petitioners, Mr.K.Raj Kumar for R1 & R2, Mr.Sundar Narayan for R15

N.Suresh Babu and 17 others

The TANGEDCO rep by Chairman-Cum-Managing Director, The Chief Engineer (Personnel), P.Murugesan and 12 others, TNEB Engineers Sangam

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Nature of Litigation

Writ petition challenging seniority list and seeking re-drawal of seniority and consequential promotions.

Remedy Sought

Petitioners sought a Writ of Certiorarified Mandamus to quash the impugned seniority list and memos, and to direct respondents to place petitioners senior to private respondents in the seniority list of Assistant Engineers (Mechanical) for 2003-2011, and to notionally promote them to Assistant Executive Engineer with effect from 26th August 2013 with all consequential benefits.

Filing Reason

Petitioners were aggrieved by the seniority list dated 02.03.2013 which placed directly recruited Assistant Engineers (respondents 3 to 14) above them, despite petitioners having earlier continuous officialion as Assistant Engineers.

Previous Decisions

Pending the writ petition, a revised seniority list dated 27.04.2013 was issued. This Court by order dated 29.04.2013 in W.M.P.No.2 of 2013 observed that any promotion granted would be subject to further orders. The petitioners' amendment of prayer was allowed.

Issues

Whether seniority of Assistant Engineers (Mechanical) should be determined by date of initial appointment or date of continuous officialion. Whether the impugned seniority list dated 02.03.2013 and subsequent memos are valid.

Submissions/Arguments

Petitioners argued that seniority should be based on continuous officialion in the cadre as per Rule 22(a) of Tamil Nadu State and Subordinate Service Rules, and that they had been officiating as Assistant Engineers from earlier dates. Respondents argued that seniority should be based on the date of initial appointment as Assistant Engineers.

Ratio Decidendi

Seniority in a cadre is determined by the date of continuous officialion in that cadre, not by the date of initial appointment. Rule 22(a) of the Tamil Nadu State and Subordinate Service Rules supports this principle. The impugned seniority list which placed directly recruited officers above promotees based on initial appointment dates was arbitrary and contrary to law.

Judgment Excerpts

The challenge in this writ petition was initially to the suitability list issued by the second respondent vide letter dated 02.03.2013... This Court, by order dated 29.04.2013 passed in W.M.P.No.2 of 2013, observed that any promotion granted would be subject to further orders... The court held that seniority is determined by continuous officialion in the cadre, not by date of initial appointment.

Procedural History

The writ petition was filed in 2013 challenging the suitability list dated 02.03.2013. Pending the petition, a revised seniority list dated 27.04.2013 was issued. On 29.04.2013, the court passed an interim order that promotions would be subject to further orders. The petitioners later amended the prayer. The petition was finally heard and disposed of on 30.01.2026.

Acts & Sections

  • Constitution of India: Article 226
  • Tamil Nadu State and Subordinate Service Rules: Rule 22(a)
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