SANJIV KHANNA, J.

The petitioner, K.P. Singh, in this writ petition impugns the order dated 30th March, 2015 passed by the Principal Bench of the Central Administrative Tribunal, whereby TA No. 384/2009 filed by him has been dismissed.

2. The petitioner had joined services of the erstwhile Municipal Corporation of Delhi as an Assistant Engineer (Civil) in 1989. Upon trifurcation, the petitioner is now an employee of the North Delhi Municipal Corporation (NDMC, for short).

3. The petitioner was given look after charge as an Executive Engineer with effect from 23rd November, 1994 and ad-hoc charge on the same post vide order dated 3rd July, 1995 along with 27 others. The Departmental Promotion Committee (DPC) for filling up vacancies in the posts of Executive Engineers for the years 1994-95 and 1996-97 were held by the Union Public Service Commission from 10th December, 1996 to 14th December, 1996. On the basis of the recommendations of the DPC the petitioner was promoted to Executive Engineer (Civil) on regular basis with effect from 9th January, 1997.

4. As per provisional seniority list for Executive Engineers dated 8th October, 1999, the petitioner was shown at Sr. No.13 on